Recover Data from a broken device - OnePlus 7T Pro (Regular & McLaren) Q & A

Hi Everyone,
I am turning to you for help in a dire situation.
I've recently dipped my OnePlus 7T Pro a bit too much into the water, and turns out, waterproofing works both ways. To cut it short, the device is operational, boots into the OS, but immediately freezes on boot completition. I've taken it to a repair shop, and they said, that the whole device is rusted on the inside, with zero chance of fixing.
I've managed to boot it into recovery mode, hoping that I can somehow pull my personal data.
The device itself has unlocked bootloader, and running the latest hardened LineageOS, rooted with magisk, and of course, the lineage recovery as well.
I can enable and access adb inside recovery, but I only see the option to mount the system partition, and adb pull only pulls system if I run it. I've tried to mount the data partition, but somehow it is empty (in adb shell, which is in root mode, I've ran mount /data /data and same with sdcard, but adb pull / still only produces system, not my personal data. I am somewhat of a noob, so there is a major possibility that I've did something wrong, my google-fu failed me.
I would be glad, if anyone could suggest anything to recover my data somehow.
Thank you for reading, and Have a Great Day!

The cpu and memory chipsets are likely BGA form factor. If the corrosion is underneath them the outlook isn't good. Is the phone completely dry now?
If there's any doubt disconnect the battery and liberally flush with anhydrous isopropyl alcohol. Pull as many connectors as possible first, carefully, and take a few pictures before doing so. Then displace as much of the alcohol as fast as possible. Use clean, dry low pressure air if available, carefully. Put in a warm 80-100F, dry room with a fan on it for at least a day. Stand it or the pieces on end.
If no one here has a recovery solution that works try disassembling it and cleaning the corrosion enough to make it bootable. It may be on the pins of the ribbon connector contacts. Maybe a peripheral assemble like the cam is killing the boot. You may be able to use a toothbrush to carefully remove enough to get it operational for a short time. Use small amounts of water then anhydrous isopropyl alcohol as a final wash/drying agent.
If you had caught the water contamination immediately it may have been salvageable using anhydrous isopropyl alcohol to dry it. The device must be powered down and battery must be pulled asap. Energized exposed metal accelerates the corrosion process greatly. Once corrosion forms on the power buses, contacts, BGA pads, etc it becomes unrepairable. Salt water is extremely corrosive, fresh water not near as bad.

Thank you for your suggestions blackhawk!
Unfortunatelly, the repair shop already went through with these practices, they've used deoxidizing agents, cleaned up the mainboard as good as possible, and disconnected everything but the battery and screen from the mainboard, still no luck.
It was in fact thermal water, so maybe somewhere between fresh and salt, due to high mineral concentration.
I do not know what could causes the system freeze, as recovery/fastboot runs fine, and the whole boot process completes.
I'll still holding my hope out for someone with some recovery/adb magic.

Just a bit of an update, I've also posted this to the 7TPro TWRP Thread in search of answers:
Since no answers came, I tried to flash TWRP over the Lineage Recovery, which in turn, works, abeit, with flaws, since I simply cannot decryt the data partition. I know that the password is correct, still, no luck.
I hope it's a good sign, that I can see the folder structure/files at least encrypted, but another issue is, with TWRP MTP mount, I cannot copy those files from the phone to the PC (errors out on copy).
Right now I'm wondering, is there a TWRP version for this phone that could decrypt my data? (A10)
Tested: 3.6.0_11 & 3.6.1_11 both FBEv2 and FBEv1 no luck. FBEv2 is the correct one as, my ROM is custom:
[CLOSED]EOL [ROM][Unofficial][10.0][microG][signed]hardened LineageOS 17.1 Oneplus 7T Pro
This thread is deprecated, please look at the 18.1 successor thread. This thread is dedicated to provide hardened Lineage-OS 17.1 builds with microG included for the OnePlus 7T Pro (hotdog) with current security patches. Features of this ROM...
forum.xda-developers.com
Also the FBEv1 shows 0MB data, and cannot mount it even in the encrypted format.
Any help is apprecated, Thank you all in advance!

Related

Has your phone decided it wants to swim?

Today, my LG Optimus decieded to go for a swim. This helped me restore it to full functionality [except for some watermarks (How do I fix this? Please help.)]
Cant post links
wikihow .com/Save-a-Wet-Cell-Phone Read this BEFORE continuing. Now, assuming you've read this, followed the instructions and for most of this, your phone turns on. There may be errors. These may help even if your phone isnt wet.
1)My phone and other cant read/detect my SD Card.
Solution (Worked for me): Heat up the SD Card slot with your breath. Then heat up the SD Card in the same way. Or use a hair dryer. The reason to this is that it increases your SDs lifespan. You should be ok, but just in case, back up all of your data to a computer.
2) My phone wont charge.
Soulution (tested and works): Rub the copper connections on your phone and battery, while they are seperate of corse with a pin or other non eletric metal. If not, check your charger.
3)My phones sound stopped working.
Solution (tested and works): Rub a Q-Tip in the headphone part of your phone. As easy as it sounds, it works. If not, reboot your phone. I learned to reboot because your phone might think that your phone is connected to headphones.
Hope I helped, and if you need help with something else concerning your wet phone, Ill be sure to try and help.
Whatever you do:
Dont freeze the water or evaporate it. Evaporating it can have harmful effects, leaving behind harmful growths and give it a foggy screen. Freezing it into ice expands its mass, shoving delicate components out of the way.

Lost IMEI and EFS

I foolishly took my new S3 for a swim the other day, and now I seem to have a phone that will not connect to the network anymore.
Events so far:-
1. Took phone for 90min swim while turned on
2. Stripped, cleaned and dried phone
3. Phone seems to work in all respects but will not connect to network
4. IMEI is still there, SIM card reads data. Connect to network says connected, but when I try to make call says not connected
5. Left phone off without battery in overnight
6. Now have null IMEI and will not read SIM
So after searching the web and these forums I have tried
1. Rooting Phone
2. GSII Repair
3. Blowing stock ROM in over the stock Orange one already there (This phone had never been changed from the factory settings until swimming trip)
Still to no avail. I do have the IMEI written down, but I do not have an EFS backup.
Is there anyway I can recreate the EFS partition with my IMEI, or is this phone now a pretty ornament as far as GSM connectivity goes?
The best thing you can do is, disassemble it for as much as possible (if that can be done without damaging it)..
then clean the PCB with pure Alcohol, that way you rinse off all the dirt/minerals etc that will cause corrotion soon otherwise.
I'm not sure if this is solely a software problem, if there is dirt in ur phone shortening stuff (like anything of the radio)
you can get weird problems, i had this with a tiny bit of dust one day in a old phone. Therefor i think its a hware problem
I would wash it in alcohol anyway, after taking off the screen, and for the rest as much as possible.. then dry it for 8hrs +/- (alcohol vaporates easily). After that , see if you still have software problems.
Xssjaakie said:
The best thing you can do is, disassemble it for as much as possible (if that can be done without damaging it)..
then clean the PCB with pure Alcohol, that way you rinse off all the dirt/minerals etc that will cause corrotion soon otherwise.
I'm not sure if this is solely a software problem, if there is dirt in ur phone shortening stuff (like anything of the radio)
you can get weird problems, i had this with a tiny bit of dust one day in a old phone. Therefor i think its a hware problem
I would wash it in alcohol anyway, after taking off the screen, and for the rest as much as possible.. then dry it for 8hrs +/- (alcohol vaporates easily). After that , see if you still have software problems.
Click to expand...
Click to collapse
Thanks I think it's as clean as it can be. No sign of any physical damage. Stripped right down to seperate pluggable components. It is either an electrical problem now or NV data being lost I think.

Recover data without touchscreen

Hi! My Realme7 (RMX2155) drown in the sea. The only problem is non-working touchscreen (it loads in normal or recovery mode, connects wifi). Official service confirmed that phone is unrecoverable (problems with motherboard).
Stock recovery. No root, no usb debugging.
I need to recover user data (mainly photos) from it. As touchscreen is not working, I can't login to enable any settings (USB debugging, MTP, PTP).
I tried to:
plug in mouse, but OTG is disabled by default (need touchscreen to enable it in settings).
flash twrp recovery, but it returned red state (needs bootloader to be unlocked?)
made a full ROM backup and tried several recovery tools on it, but I see abracadabra in file names and in file content (see screenshot, encryption?).
I've no more ideas, pls help
BIG trouble, you did the wrong and worst thing...
Pull battery immediately.
Salt water is highly corrosive especially with energized circuits.
Your only hope is to pull battery and submerged in warm RO warm for 30 minutes, replace water and repeat. Move it around and try to completely flush out all salt. This will be impossible to completely do but it may be enough to allow temporary operation.
Drain water. Compressed clean dry low pressure air helps.
If it doesn't have a LCD display* flush liberally with anhydrous isopropyl alcohol minimum 96%.
Then displace as much of the alcohol as possible. Place in a warm, DRY room with a fan directly on it for a minimum of 4 days to dry.
Reconnect battery and attempt boot up. Even if it boots it will fail sooner or latter from the salt caused damage. Retrieve data asap.
No time to dilly-dally Mr Wick... tic-tok
Alternatively if this fails or if the data must be recovered, hire a data recovery service that will pull the chipset and attempt to retrieve the data.
The chipset with the data on it is most likely a BGA form factor. If the water got under it, it's corroding away its contact pads underneath.
*never get solvents of any kind near a LCD display. It will poison the liquid crystals.
blackhawk said:
BIG trouble, you did the wrong and worst thing...
Pull battery immediately.
Salt water is highly corrosive especially with energized circuits.
Your only hope is to pull battery and submerged in warm RO warm for 30 minutes, replace water and repeat. Move it around and try to completely flush out all salt. This will be impossible to completely do but it may be enough to allow temporary operation.
Drain water. Compressed clean dry low pressure air helps.
If it doesn't have a LCD display* flush liberally with anhydrous isopropyl alcohol minimum 96%.
Then displace as much of the alcohol as possible. Place in a warm, DRY room with a fan directly on it for a minimum of 4 days to dry.
Reconnect battery and attempt boot up. Even if it boots it will fail sooner or latter from the salt caused damage. Retrieve data asap.
No time to dilly-dally Mr Wick... tic-tok
Alternatively if this fails or if the data must be recovered, hire a data recovery service that will pull the chipset and attempt to retrieve the data.
The chipset with the data on it is most likely a BGA form factor. If the water got under it, it's corroding away its contact pads underneath.
*never get solvents of any kind near a LCD display. It will poison the liquid crystals.
Click to expand...
Click to collapse
The problem is - it's too late It happened more than a month ago. I couldn't pull the battery - it's non removable (it was the first thing I tried). It was not easy to remove back cover without equipment (it is glued). Official service tried to repair the phone, they flushed out salt, changed screen, connectors, but with no result - motherboard was damaged already. However it still works completely, except the touchscreen.
I gave up trying to repair the phone, I just want to recover data - in any way.
Hire the recovery service is a good idea, but quite expensive. That will be my last hope
lun1234 said:
The problem is - it's too late It happened more than a month ago. I couldn't pull the battery - it's non removable (it was the first thing I tried). It was not easy to remove back cover without equipment (it is glued). Official service tried to repair the phone, they flushed out salt, changed screen, connectors, but with no result - motherboard was damaged already. However it still works completely, except the touchscreen.
I gave up trying to repair the phone, I just want to recover data - in any way.
Hire the recovery service is a good idea, but quite expensive. That will be my last hope
Click to expand...
Click to collapse
At that point break the rear cover off if need be as every minute counts.
Even with quick action is likely already dead anyway. The salt leaves a residue that attracts moisture. It may have given you enough time though to retrieve the data latter when it was flushed and dried.
See what kind of quotes you get. Probably starts at at least $400.
Hope that repair shop told you any repairs only be temporary at best... salt water is insidious.

Recovering texts, contacts, and photos from G7 power

Hello all,
I have been using LineageOS for MicroG on a Moto G7 power for about two years. This was all great until I forgot I had my phone in my bathing suit pocket and took it into the ocean with me while on vacation. I disassembled the phone, disconnected the internal battery, washed with fresh tap water, and then soaked in isopropyl alcohol for a while. After drying, I tried reconnecting the battery and got no external signs of life. I tried connecting a usb cable between the phone and my computer. Oddly enough, the phone shows up as a ADB device.
I opened a adb shell and tried "cd sdcard" to see if I could get into the DCIM folder to recover my photos. I got the output "/system/bin/sh: cd: /sdcard: No such file or directory". Just for fun I tried to see if I could boot TWRP and do anything with that. I entered "adb reboot bootloader", waited a while and then entered "fastboot boot twrp.img). The phone then showed up on my computer in some kind of file transfer mode. I was now able to see the "sdcard" folder. but the contents were all random characters and I was unable to open any files.
The three questions I have are:
1. Given the info above, is there any way to recover contacts, texts, and photos via any ADB commands?
2. When I was able to view the "sdcard" folder, it was all gibberish. Does LineageOS for MicroG encrypt its folders, or is my data likely corrupted?
3. Given that the phone responds to ADB anf Fastboot commands, what are the chances that the main board and memory are OK and its a just an issue of the screen being dead?
Thanks in advance for any help that you all may be able to provide,
Tim
Is the data on a SD card? Is it encrypted?
The phone is likely toast, if not now, soon.
It was RO or distilled water it needed to soak in, not isopropyl alcohol! Isopropyl alcohol (or any solvent) will as you see, poison the LCD. Water then air dry for LCD phones.
Regardless the salt likely already started the corrosion process*. It will likely fail eventually... it's a killer. Sometimes if you pull the battery immediately/flush it completely out within minutes the device might be saved. That's a big maybe.
*residue left behind on the connector contacts and such is corrosive and hygroscopic. Unless completely removed the corrosion tends to slowly continue.
Given my original post, do you think the LCD display is the only casualty? Replacement screens seem to be about $30. Do you think it is worth the risk to get one? Its not like its a ton of money. I don't know any other way to take control of the phone without a working display. Is there a ADB command that can put it into file transfer mode where I can at least get my photos? I am not looking to achieve a long term repair. Only looking to retrieve my data.
Thanks
P.S. I did hit all the connectors with contact cleaner and gently scrubbed with a toothbrush when I had the phone apart.
tim0477 said:
Given my original post, do you think the LCD display is the only casualty? Replacement screens seem to be about $30. Do you think it is worth the risk to get one? Its not like its a ton of money. I don't know any other way to take control of the phone without a working display. Is there a ADB command that can put it into file transfer mode where I can at least get my photos? I am not looking to achieve a long term repair. Only looking to retrieve my data.
Thanks
P.S. I did hit all the connectors with contact cleaner and gently scrubbed with a toothbrush when I had the phone apart.
Click to expand...
Click to collapse
Give it a shot.
Not much to lose and it will be an interesting experiment if you get it online again.
Check around the power section and V+ rails on the mobo for damage. There's not much you can do with the BGA chipsets as all the solder joints are beneath them.
I dropped my Buds case in a full cup of coffee, cream and sugar. Broke it down on the spot, flushed with RO water then anhydrous isopropyl.
The battery is spot welded in so that wasn't removed. Drank the coffee. Dried it for a day.
2.5 years later it's still working.
$hit happen...
tim0477 said:
Given my original post, do you think the LCD display is the only casualty? Replacement screens seem to be about $30. Do you think it is worth the risk to get one? Its not like its a ton of money. I don't know any other way to take control of the phone without a working display. Is there a ADB command that can put it into file transfer mode where I can at least get my photos? I am not looking to achieve a long term repair. Only looking to retrieve my data.
Thanks
P.S. I did hit all the connectors with contact cleaner and gently scrubbed with a toothbrush when I had the phone apart.
Click to expand...
Click to collapse
Personally i would buy another working phone even a cracked screen one as long as it works and just swap out the motherboard i have repaired and brought back to life a lot of electronics using a spray chemical called deoxit , it was originally used by musicians to clean there electronics on mainly guitars but this stuff ids liquid gold for water damaged motherboards and such . If what you have on your phone is very important to you its worth spending extra money especially for pics as thats 1 thing you can never replace if you didn't back them up . Check out ebay you can find 1 complete for $40 or less . I've had phone repair customers come to me for this same issue on so many different phones which i repair anyway . I always buy a working phone from ebay or craigslist and do the motherboard swap as thats where everything is stored on and always spray Deoxit on board before installing and i get a great success rate !
Replaced the screen and the phone is working again. Unfortunately, the data is lost. Efforts to retrieve anything via ADB resulted in files and folders with names made up of random characters. The files were unopenable. Tried side loading a new copy of LineageOS and that also failed. Ultimately came to the conclusion that my data was toast. Ended up reformatting the memory, side loading a new copy of Lineage, and was still unable to boot. Reformatted again and tried a copy of a stock Motorola ROM and that finally allowed the device to boot. Sucks that I lost my photos and stuff, but was a interesting experiment to see if I could bring the device back to life again.
Is there any app that would do scheduled backups to a removable SD card? I know I could backup through Google, but I do not want to share my data with big tech.
Thanks.
tim0477 said:
Replaced the screen and the phone is working again. Unfortunately, the data is lost. Efforts to retrieve anything via ADB resulted in files and folders with names made up of random characters. The files were unopenable. Tried side loading a new copy of LineageOS and that also failed. Ultimately came to the conclusion that my data was toast. Ended up reformatting the memory, side loading a new copy of Lineage, and was still unable to boot. Reformatted again and tried a copy of a stock Motorola ROM and that finally allowed the device to boot. Sucks that I lost my photos and stuff, but was a interesting experiment to see if I could bring the device back to life again.
Is there any app that would do scheduled backups to a removable SD card? I know I could backup through Google, but I do not want to share my data with big tech.
Thanks.
Click to expand...
Click to collapse
The folks over on the Motorola G7 Telegram group were awesome for ideas on how to revive this phone.
tim0477 said:
Replaced the screen and the phone is working again. Unfortunately, the data is lost. Efforts to retrieve anything via ADB resulted in files and folders with names made up of random characters. The files were unopenable. Tried side loading a new copy of LineageOS and that also failed. Ultimately came to the conclusion that my data was toast. Ended up reformatting the memory, side loading a new copy of Lineage, and was still unable to boot. Reformatted again and tried a copy of a stock Motorola ROM and that finally allowed the device to boot. Sucks that I lost my photos and stuff, but was a interesting experiment to see if I could bring the device back to life again.
Is there any app that would do scheduled backups to a removable SD card? I know I could backup through Google, but I do not want to share my data with big tech.
Thanks.
Click to expand...
Click to collapse
Yeah sound like you lost the encryption key(s)
Hear you on the Gookill cloud, it sucks. Trust Google with privacy? No.
An Android app that can do folder/file syncing reliably be nice. Right now I just copy whole folders... that takes a while.
Leave the SD card in the phone* and use it as a data drive. Then back up the SD card using the PC or 2 OTG flashsticks. Leave the SD card in the phone at all times.
If you use flashsticks also make periodic backups to hdds that are physically and electronically isolated from each other and the PC... because things can happen. Flash memory is convenient but less robust than hdd. You can never have too many backup drives. Never encrypt backup drives.
*if the OS crashes it will likely spare the SD card data, but never bet everything on that being so. The second drive provides some extra data security but it's not invulnerable to worms. A near lightning strike, accident or flash failure can also wipe everything.

Question Data recovery or erasure options when the screen does not respond/phone doesn't boot and USB debugging is not enabled

Good day,
I would very much appreciate help with the following.
The screen on my Xperia 1 III is no longer working after, what I assume to be, water damage that entered via the USB port.
Previously, I have never had an issue with that before and it was whilst waiting for the USB port to dry out that the phone switched off and upon restarting green lines were flickering across the screen and it did not get beyond the Sony logo.
I have tried drying the phone out with silica gel for >48 hours.
Following that there is a single, steady, green line across the top of the screen but nothing else and the screen/phone switches off a few seconds later.
The situation is:
USB debugging is not enabled.
Bluetooth was not enabled at the time of the issue.
The phone was not paired or set to allow data transfer with the laptop I currently have.
I’ve installed the Android SDK (including ADB tools) on the laptop.
The phone was visible n Device Manager and the Sony drivers were then installed.
However, because USB debugging is not enabled it failed to show up when the ‘ADB Devices’ command was run.
Two phone recovery applications were tried but they were not useful and only appeared to be of any value in this situation if it was one of a limited number of Samsung models.
I may have misunderstood but starting in ClockworkMod Recovery mode doesn’t seem to be an option for the Xperia 1 III as the Sony ‘unlock bootloader’ - https://developer.sony.com/develop/open-devices/get-started/unlock-bootloader - should have been done beforehand.
What options are there for:
a) Getting the data, Due to the fact it has personal data I am accepting of paying up to £200 providing that I can definitely copy my data over and erase the data or use the phone afterwards.
A replacement LCD + digitiser seems to be around £400 which is out of my budget and, whilst it seems to be ‘only’ water damage to the screen, may not be guaranteed to work.
Or,
b) Erasing it completely. I have had a bad experience with a previous phone insurer years ago when I could not read a phones screen and they had kept the old damaged phone on and collecting data for a long time – a fact I only discovered when checking my Google account and seeing the list of connected devices and the dates… Consequently, I do not want this to happen again and I am concerned that signing out of the phone, from my Google account, is not sufficient.
Many thanks in advance.
Pull the battery asap. Dry it out completely before reapplying power. Think days not hours.
If that fails you be boned.
Otherwise only a data recovery specialist who can hot air the SOC off has a chance at recovering the data.
Assuming the PCB isn't already corroded away, I think your options are one of:
Pry off or break open the back then let it dry somewhere warm
Put it in a vacuum chamber for several hours to evaporate the water. The pump will need fresh oil because only a high vacuum evaporates water. (People use these to degas composite adhesives and casting mix)
Wrap the phone in paper and place it under dry ice so that the water freezes. Boot it and copy everything off while it's still under dry ice. CO2 that gets into the water will form a weak acid and likely destroy the phone once it warms up.
As stated above, get that battery out ASAP.
What I have done in the past with my 1iii (I have broken the screen before and it wouldn't display anything) is connected a usb dongle that has usb, hdmi and ethernet port all on it.
I had a usb mouse and a display connected via the HDMI port on the dongle. I was able to boot the phone with the broken screen unplugged but the external screen and mouse connected.
When a external screen is detected the phone defaults to a mirror display of the main screen.
You can then use the mouse to enter your pin and the external screen and operate the phone that way.
This only works if your usb port is working. Since you state that the computer detected the phone I'd presume that the usb port is working still.
kevinmcmurtrie said:
Assuming the PCB isn't already corroded away, I think your options are one of:
Pry off or break open the back then let it dry somewhere warm
Put it in a vacuum chamber for several hours to evaporate the water. The pump will need fresh oil because only a high vacuum evaporates water. (People use these to degas composite adhesives and casting mix)
Wrap the phone in paper and place it under dry ice so that the water freezes. Boot it and copy everything off while it's still under dry ice. CO2 that gets into the water will form a weak acid and likely destroy the phone once it warms up.
Click to expand...
Click to collapse
Dry ice is bad plan. It can fracture solder joints and is beyond the storage specs of all the chipsets let alone operating specs. Not to mention the Li will have little available power.
Anhydrous isopropyl alcohol can be used as a drying agent. Flush with it then drive all the access as possible in a dry, warm room. Allow to dry for 2 days with a fan on it.
Njal31 said:
Good day,
I would very much appreciate help with the following.
The screen on my Xperia 1 III is no longer working after, what I assume to be, water damage that entered via the USB port.
Previously, I have never had an issue with that before and it was whilst waiting for the USB port to dry out that the phone switched off and upon restarting green lines were flickering across the screen and it did not get beyond the Sony logo.
I have tried drying the phone out with silica gel for >48 hours.
Following that there is a single, steady, green line across the top of the screen but nothing else and the screen/phone switches off a few seconds later.
The situation is:
USB debugging is not enabled.
Bluetooth was not enabled at the time of the issue.
The phone was not paired or set to allow data transfer with the laptop I currently have.
I’ve installed the Android SDK (including ADB tools) on the laptop.
The phone was visible n Device Manager and the Sony drivers were then installed.
However, because USB debugging is not enabled it failed to show up when the ‘ADB Devices’ command was run.
Two phone recovery applications were tried but they were not useful and only appeared to be of any value in this situation if it was one of a limited number of Samsung models.
I may have misunderstood but starting in ClockworkMod Recovery mode doesn’t seem to be an option for the Xperia 1 III as the Sony ‘unlock bootloader’ - https://developer.sony.com/develop/open-devices/get-started/unlock-bootloader - should have been done beforehand.
What options are there for:
a) Getting the data, Due to the fact it has personal data I am accepting of paying up to £200 providing that I can definitely copy my data over and erase the data or use the phone afterwards.
A replacement LCD + digitiser seems to be around £400 which is out of my budget and, whilst it seems to be ‘only’ water damage to the screen, may not be guaranteed to work.
Or,
b) Erasing it completely. I have had a bad experience with a previous phone insurer years ago when I could not read a phones screen and they had kept the old damaged phone on and collecting data for a long time – a fact I only discovered when checking my Google account and seeing the list of connected devices and the dates… Consequently, I do not want this to happen again and I am concerned that signing out of the phone, from my Google account, is not sufficient.
Many thanks in advance.
Click to expand...
Click to collapse
You can seek help from sony. The manufactor can backup your full data through 9008 mode even your phone brick. If your phone is in care period it will cost less. Then you can fix the hardware problem and restore data.
cscomic said:
You can seek help from sony. The manufactor can backup your full data through 9008 mode even your phone brick. If your phone is in care period it will cost less. Then you can fix the hardware problem and restore data.
Click to expand...
Click to collapse
Not with fried mobo. A data recovery specialist might be able to...
blackhawk said:
Dry ice is bad plan. It can fracture solder joints and is beyond the storage specs of all the chipsets let alone operating specs. Not to mention the Li will have little available power.
Anhydrous isopropyl alcohol can be used as a drying agent. Flush with it then drive all the access as possible in a dry, warm room. Allow to dry for 2 days with a fan on it.
Click to expand...
Click to collapse
Anhydrous isopropyl alcohol on a mostly sealed phone won't leave it in any better condition than dry ice will. It's great for washing modern PCBs but it eventually destroys adhesives, optics, conformal coatings, and some electronic components. You can't easily dry things out by putting them next to alcohol either. The alcohol will migrate towards the water faster than the water will migrate towards the alcohol.
Opening the phone is the only plan where it might survive long-term. A vacuum chamber is the second best bet.
kevinmcmurtrie said:
Anhydrous isopropyl alcohol on a mostly sealed phone won't leave it in any better condition than dry ice will. It's great for washing modern PCBs but it eventually destroys adhesives, optics, conformal coatings, and some electronic components. You can't easily dry things out by putting them next to alcohol either. The alcohol will migrate towards the water faster than the water will migrate towards the alcohol.
Opening the phone is the only plan where it might survive long-term. A vacuum chamber is the second best bet.
Click to expand...
Click to collapse
You know what happens when water freezes? It expands... forcefully.
The first thing that must be done is to disconnect the battery to stop electrolysis induce corrosion of the power pathways. Sooner is better.
You must open it up to flush.
Anhydrous isopropyl absorbs all moisture which is why you do it in a dry room. I've used it for over 20 years on electronic assemblies. Any conformal coating is irrelevant at this point. Best judgment should be used. Adhesives wouldn't be damaged from a brief exposure. The cams and if it gets between the display and glass it will leave a stain residue, again irrelevant in this case.
Any water will destroy the device and it will not operate properly if water is present.
Most of the isopropyl will have evaporated in a few hours in a warm (80-120F), dry room with a fan on it. Low pressure air can be used at first to help drive the alcohol out, carefully.
The most important thing is to purge moisture from the BGA chipset contacts including the SOC and the power section. Water will also linger on the ribbon cable connector contacts.

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