How to reinstall the same Android version? - Galaxy S III Q&A, Help & Troubleshooting

Hello guys, I have S3 with the Android version 4.3 i want to reinstall firmware to be sure there aren't malware, because i have read that malware may remain also after a hard reset because a malware can infect firmware, so i would like to reinstall firmware (i don't want to change firmware, i only want reinstall 4.3), i saw this guide https://forum.xda-developers.com/galaxy-s3/general/guide-how-to-reinstall-stock-firmware-t1978840 and my question is, if i follow this guide,can i to be sure my S3 firmware (consequently also phone because with the method of the guide will do hard reset)is safe, whithout malware? P.S. sorry for my bad English

Find the stock firmware for your phone. Put the phone into download mode and flash the firmware via odin on the pc.
Flash the stock firmware.
Factory reset.
Flash stock firmware again.
That should remove any unwanted remnants.
You are correct by presuming malware may remain after a factory reset.
Beamed in by telepathy.

shivadow said:
Find the stock firmware for your phone. Put the phone into download mode and flash the firmware via odin on the pc.
Flash the stock firmware.
Factory reset.
Flash stock firmware again.
That should remove any unwanted remnants.
You are correct by presuming malware may remain after a factory reset.
Beamed in by telepathy.
Click to expand...
Click to collapse
Thanks so much

Related

Update via Kies after custom rom flash

Hi, i have had my sgs2 for a few months and i've decided i want to swap it for a different phone
my problem is, i have flashed a lot of different rom's and forgot to make a nandroid backup of original firmware so i have found the second to last update (original samsung stock) and flashed that via odin so the phone is back to stock unrooted, i then connected it to kies and tried to update to latest firmware but it came back with unable to update this device
i got the stock firmware from the post in original development and i'm almost sure its the right one
i am from the UK and i am on Orange network but the mobile is unlocked, can anyone help me to get kies to update or tell me what the right firmware/kernel to use so kies will update the device.
p.s. i only want to do this because i want the person i am swapping with to be able to update it without using odin etc..
Thanks,
Simon.
KF3 is an official firmware as far as I know. Download and flash that via Odin. You should get update via Kies if it is there.
Sent from my GT-I9100 using Tapatalk
First is your phone factory unlocked or unlocked by IMEI.If its unlocked by IMEI then you need to check the product code to see what operator firmware is the original but if its factory unlocked then XDA or Samfirmware should have it but clear the bin counter and system data in CWM mode before the flash.Try everything to clear the phone completely.
What firmware do have now??

[Q] root in spite of flash

Hello,
I recently returned my GS3 because of an audio problem.
My GS3 was rooted, so before to returned it, I used Triangle Away to reset the flash counter then I flashed an official firmware with Kies. The status of the GS3 was "normal" (in french but I suppose it's the same in english) and my counter showed a "Samsung Official"
The problem is that Samsung refuses to repair my mobile and claims my warranty is voided because my device was rooted and asks me to pay for the repair.
So I have two questions :
Firstly : How can Samsung know my device was rooted after a reset of the flash counter, a flash with an official firmware and an hard reset ?
Secondly : Is There anyone else who had the same problem with Samsung ?
img4.hostingpics.net/pics/71048111337050.jpg
Thank you (Im french so sorry for my English)
What ROM build and modem did it come with?
What ROM build and modem did you send it back with?
AbuYahya said:
What ROM build and modem did it come with?
What ROM build and modem did you send it back with?
Click to expand...
Click to collapse
At first the phone was the official rom (Samsung 4.0.3) then I put Cyanogen Mod 10 (root), then I went back to the official rom via kies (I put away Triangle) and I again flash for a rom clean. Then I did a hard reset.
I never flash the modem
I send my phone with the official Rom (4.0.4) downloaded with Kies
Jordan67 said:
At first the phone was the official rom (Samsung 4.0.3) then I put Cyanogen Mod 10 (root), then I went back to the official rom via kies (I put away Triangle) and I again flash for a rom clean. Then I did a hard reset.
I never flash the modem
I send my phone with the official Rom (4.0.4) downloaded with Kies
Click to expand...
Click to collapse
Was it the right version... ex, was it originally on a carrier branded firmware, but you flashed an unbranded version?
Did you flash another region's firmware, ex Polish firmware will have a different CSC to an English one, and can show it has been rooted.
Are you sure there were no root apps, or CWM recovery zips on your internal sd?
All of these can show the system has been rooted before, and are grounds for voiding warrenty (examples can be triangle away apk, CFroot, rom .zips etc.
I have never had my internal sd wiped when I wipe data/factory reset, so this could be plausible.

[Q] Mobile Odin Flash Procedure for Stock

Hello there,
an acquaintance of mine has bought an SGS3 i9300 (international) from Thailand but wants to use it in Germany.
The Stock Android Version is 4.04 which cannot be updated using OTA, it says none available.
As he would like to use his S3 in German, I offered him to try flashing a Stock Firmware with Region Germany and CSC "DBT".
Since we can see each other only once more and have no access to a computer at that time, I have planned a way to manage this which I would like to know about whether it may or may not work:
1.) Use Chainfire's ExynosAbuse apk to root
2.) Reset Flash Counter with TA (Is this required when using ExynosMem exploit to root?)
3.) Use Mobile Odin to Flash PDA "I9300XXELL4" and wipe Data, Cache and Dalvik
4.) Optionally change CSC to DBT, first testing with *#1234#, then changing with *#272*Device IMEI# or CSC Changer from GPlay
Finally Factory Reset in settings app.
A) Will this device then be completely Stock (expect for the wanted region change) and, in future, able to update with Kies or OTA?
Hence, with System Status Normal, Custom Binary Download No and Flash Counter set to zero?
B) Would you rather recommend not to care about CSCs and the region but choose the newest Firmware XXELLC (from Europe)?
C) Is it OK just to flash the .tar.md5 firmware package from extSDCard or would you rather copy it to the phone's internal SDCard first?
Thanks in advance, :victory:
juicer.
1. Exynosabuse (root)
2. Mobile odin xxellc
3. TA (unroot)
4. Factory reset
I won't worry too much about csc, but you will want to check the csc is one that is corresponding to the firmware to get kies updates. I never had the problem but some people report getting KOR csc when flashing firmwares..
Also check to make sure device status if official.
Sent from my GT-I9300 using xda premium
Thanks!
Why is it better to stick with EverRoot, thus injecting SuperSU and Root while flashing? MobileOdin itself won't trigger the flash counter if it's true what I read.
And I guess due to the fixed ExynosMem Exploit Root will just be gone?
I'm just a little scared we somehow screw it up and have no chance to fix it due to the lack of a PC... Is a brick probable?
And how about the strict update to JellyBean, is the new bootloader flashed that way and if, will it affect something?
Tbh I really can't tell you. Every device is different and as with any unofficial methods, you won't get any help from samsung if things go wrong. As for everroot, I guess you don't need to check it as you don't require root.
But do note TA Might not work without root? I'm not too sure about this. Might wanna check for somebody else's opinion on this.
As for bootloaders, you will probably want to back your apps up in case they get wiped, but you won't be able to restore them without root so I don't know what your options are.
Sent from my GT-I9300 using xda premium
I just wanted to report that everything worked fine, didn't use EverRoot so the device was in wiped and unrooted Stock state after flashing which was the goal — achieved it
Great to know
Sent from my GT-I9300 using xda premium

[Q] Flashing to stock & reset flash counter

Hi all,
I'm about to reset my S3 (GT-i9300) back to complete stock, unrooted. I'm currently rooted and running Illusion 2.1 beta (Android 4.2.2 I believe).
I'm looking for someone with a little more knowledge than myself to run over the following steps and let me know if there's something I'm missing, or about to do wrong! Any help/advice/guidance is very much appreciated.
I've tried to do the research myself - I'm simply lacking the confidence to just go ahead with some flaky knowledge.
Download Odin 3.07
Download latest 4.1.2 BTU firmware from sammobile
Flash said firmware using Odin (only use Auto-reboot and reset F-time)
Root the phone (what's best to use for this nowadays??)
Download and run Triangle Away
Flash firmware once more via Odin
Is the above correct? Is there a way to format internal memory to get rid of the nonsense that has built up from custom ROMs/apps/etc.?
Also, I'm slightly unsure about the best tools to use for point 4 at the moment, but I'm sure I'll find them here
Thanks in advance for any help.
Andy
andy9l said:
Hi all,
I'm about to reset my S3 (GT-i9300) back to complete stock, unrooted. I'm currently rooted and running Illusion 2.1 beta (Android 4.2.2 I believe).
I'm looking for someone with a little more knowledge than myself to run over the following steps and let me know if there's something I'm missing, or about to do wrong! Any help/advice/guidance is very much appreciated.
I've tried to do the research myself - I'm simply lacking the confidence to just go ahead with some flaky knowledge.
Download Odin 3.07
Download latest 4.1.2 BTU firmware from sammobile
Flash said firmware using Odin (only use Auto-reboot and reset F-time)
Root the phone (what's best to use for this nowadays??) => cf-autoroot
Download and run Triangle Away
Flash firmware once more via Odin
Is the above correct? Is there a way to format internal memory to get rid of the nonsense that has built up from custom ROMs/apps/etc.?
Also, I'm slightly unsure about the best tools to use for point 4 at the moment, but I'm sure I'll find them here
Thanks in advance for any help.
Andy
Click to expand...
Click to collapse
see my comments above. In addition here is a guide.
Furthermore make sure you have stock recovery & kernel, as otherwise it will maybe increase the counter (both should come with stock firmware though).

[Q] Android Jelly Bean update

Hi Guys, I have looked high and low but cannot seem to find a definitive answer so to what to do.
Basically I have a Samsung S3 which about 5 months ago I rooted to enable me to use any network. Basically O2 who I used to have a contract with messed up somehow and on their records they could not find a IMEI number and so couldn't unlock, I was going round in circles and as I was moving abroad I had no other option.
Everything went fine and it is only now that I would like to update the OS to its latest version that when I go to the settings and update it says something about having a modified firmware (I think, another story altogether but I now broke the screen and so waiting for a replacement to fix it).
My questions are:
Will I ever be able to update normally via the settings menu again?
What is the latest stable Android update that I could use? KitKat?
Where is the best place to source the most recent Android distributions?
Basically I am just looking for a bit of advice on how to go about keeping my phone up to date with the latest features. I am not really interested in adding hacked functionality etc at this point.
Thanks
If you unlocked your phone using the 'free' methods then updating to the latest rom will return the network lock or corrupt your efs folder, depending on how the unlock was achieved.
You can't use ota updates as you've modified your phone.
Sammobile is where you obtain the latest rom.
Also, questions go the q&a forum and all the above information is posted many times.
Sorry for the wrong forum post.
So to be clear if I want to update I need to go to manually update the phone. Is this via kies or will it be more complex as my phone is now rooted / modded.?
Sent from my iPad using Tapatalk HD
bmouthboyo said:
Sorry for the wrong forum post.
So to be clear if I want to update I need to go to manually update the phone. Is this via kies or will it be more complex as my phone is now rooted / modded.?
Sent from my iPad using Tapatalk HD
Click to expand...
Click to collapse
As said, you wont get any updates via OTA if your phone is rooted,
Go to Sammobile.com, find the latest UK / Europe (BTU) generic rom it will be the version ending MJ9.
Download Odin and Guide here
Flash the rom using Odin, doing this will remove root access, once you have installed the rom, enter recovery mode and clear Cache / Dalvik Cache then factory reset (be aware this will wipe your phone and internal storage so copy any files to your PC first)
Boot the phone and set it up, then go to software updates on your phone and update the MJ9 version to MK6,
Now your phone will be fully stock and get OTA updates in the future plus you will have the generic UK and Europe firmware version (BTU) Android 4.3.
Thank you so much, that is a nice clear guide
My last question is if people think it's good to update to 4.3 now? I read the UK was having issues with it?
Sent from my iPad using Tapatalk HD
bmouthboyo said:
Thank you so much, that is a nice clear guide
My last question is if people think it's good to update to 4.3 now? I read the UK was having issues with it?
Sent from my iPad using Tapatalk HD
Click to expand...
Click to collapse
No wait for the next full build .
Read the faqs and guides as you wait .
Had a good read about, thanks for that.
Does anyone know or hazard a guess when next official jellybean release may be? Do they run on development cycles, or is this more an advice patch?
Any ideas on if update coming soon that is good idea to flash with?
Also if I install a new ROM I know everything is wiped, is there a way I can back up all my whatsapp convocations etc? Or will I need to install all the apps a fresh? Ie can I restore the phone as is now or will it be a case of each app installed from scratch?
Thanks so much for help so far, think I will update today.
bmouthboyo said:
Any ideas on if update coming soon that is good idea to flash with?
Click to expand...
Click to collapse
Go to the sammmobile link in the previous post I suggested to you and download the UK (BTU) MK6 firmware, there is nothing wrong with that version, if you are already on a stock rom just flash this no need to do any factory resets, wipes.etc
bmouthboyo said:
Also if I install a new ROM I know everything is wiped, is there a way I can back up all my whatsapp convocations etc? Or will I need to install all the apps a fresh? Ie can I restore the phone as is now or will it be a case of each app installed from scratch?
Thanks so much for help so far, think I will update today.
Click to expand...
Click to collapse
If you are on a stock rom then flash the rom mentioned above it will not affect any of your apps they will still work the same unless you have root dependant app but then simply root your phone again using CF-Auto Root in my signature.
The times you have problems is when you have custom roms then going to a different custom rom or back to a stock rom, in these cases you need to do a full wipe and factory reset so you loose all data unless you have back it up.
ag4751 said:
Go to the sammmobile link in the previous post I suggested to you and download the UK (BTU) MK6 firmware, there is nothing wrong with that version, if you are already on a stock rom just flash this no need to do any factory resets, wipes.etc
If you are on a stock rom then flash the rom mentioned above it will not affect any of your apps they will still work the same unless you have root dependant app but then simply root your phone again using CF-Auto Root in my signature.
The times you have problems is when you have custom roms then going to a different custom rom or back to a stock rom, in these cases you need to do a full wipe and factory reset so you loose all data unless you have back it up.
Click to expand...
Click to collapse
Factory reset will not wipe the internal sd card. So if u back up whatsapp conversations without ext sd card, factory reset will not wipe it.
Sent from my GT-I9300 using xda app-developers app
ag4751 said:
Go to the sammmobile link in the previous post I suggested to you and download the UK (BTU) MK6 firmware, there is nothing wrong with that version, if you are already on a stock rom just flash this no need to do any factory resets, wipes.etc
If you are on a stock rom then flash the rom mentioned above it will not affect any of your apps they will still work the same unless you have root dependant app but then simply root your phone again using CF-Auto Root in my signature.
The times you have problems is when you have custom roms then going to a different custom rom or back to a stock rom, in these cases you need to do a full wipe and factory reset so you loose all data unless you have back it up.
Click to expand...
Click to collapse
Thanks for that, I am downloading that ROM now.
When you say stock ROM, I did not go to a custom one but I did root my phone to allow it to be region free. I still get the O2 splash screen etc, so is it safe to say it is still stock and I can simply flash the new ROM without a factory reset?
bmouthboyo said:
Thanks for that, I am downloading that ROM now.
When you say stock ROM, I did not go to a custom one but I did root my phone to allow it to be region free. I still get the O2 splash screen etc, so is it safe to say it is still stock and I can simply flash the new ROM without a factory reset?
Click to expand...
Click to collapse
Yes, my phone was Stock o2 when I got it in May 2012, first thing I did was flash the Generic BTU firmware to get rid on o2 stuff, I have never had to do a Factory reset nor wipe Cache, Dalvik Cache on my phone, it has always been rooted and apart for the MJ9 issues that Samsung had late last year it has worked fine, no lag, no random reboots, no freezing.
If you don't root you will get OTA updates, if you root you wont but you can still use Kies or Sammobile to update to any latest version releases, the factory reset will wipe pictures, music and your app data from your internal storage so if you back them up to your PC before a Factory reset you can replace them afterwards, but if you have not had any custom roms on your phone the need for a factory reset would be highly unlikely.
That's great, all went well today with the MK6 update listed above. I now see there is a MK7 update for jellybean from Israel. Worth going to this?
bmouthboyo said:
That's great, all went well today with the MK6 update listed above. I now see there is a MK7 update for jellybean from Israel. Worth going to this?
Click to expand...
Click to collapse
Choice on that is yours really.
Just because there is a higher number version doesn’t mean its an update from what you have unless it is based on the same version (eg BTU) if you have BTU MK6 and there was a BTU MK7 then that is an upgrade.
Where Isreal has MK7, India has ML4 this generally relates to how long and how many attempts they have in getting that country specific version ready for release, not an upgraded version of MK6.
You need to ensure that the rom you do install has multi CSC’s otherwise you could end up with no network signal or data.

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