Hi there! I'm hoping someone on XDA Developers can help me sort out a root gone-wrong.
I did my best to follow the guide on XDA. I have an Umidigi A9 Pro with 6gb ram. I was successfully able to get the android tools on PC and was able to unlock the bootloader. I went to the Umidigi website to get the ROM. I think I *might* have grabbed the wrong one. Once I got this zip from the Umidigi website, I unzipped the folder and copied the boot.img that was in that root folder to the device. I then went into Magisk and patched the img. I then copied the patched img to my PC then use the commands on the XDA guide to flash the image to the device, the flash was successful (I think). However the device is now stuck in a boot loop. The device displays the Umidigi OEM logo and the android logo; underneath it says in small text:
Orange State
Your device has been unlocked and can't be trusted
Your device will boot in 5 seconds
after 5 seconds the screen goes black and then comes back with the same screen. This happens continuously. I have tried holding the volume down, the power button, and several combinations of volume up, down, and power. Holding all buttons down makes the screen stay black, however while plugged into the PC the PC still makes the device connected and disconnected sounds off and on. Whenever I release the buttons, it goes right back to the loop. Windows PC plays the device connected and disconnected sound on and off. The command prompt is not able to affect the device. When I run "adb devices" it doesn't display the phone so it doesn't seem that windows is detecting the device.
ROM: https://community.umidigi.com/forum.php?mod=viewthread&tid=22236&extra=page=1
https://www.umidigi.com/page-Download.html
I'm hoping for some help on this one
Thank you!
It should be obvious that when being in a bootloop ADB cannot function: On Android side the ADB daemon gets started and after seconds closed, and this over and over again.
In the simplest explanation, a bootloop describes when your phone is stuck in a loop of rebooting. The term "bootloop" is just a more common way of saying "reboot loop."
Curious if you ever managed to get this figured out? I'm in essentially the same situation, though I was not attempting to flash a ROM. I successfully managed to get TWRP 3.5.2 installed and then I was trying to get Magisk installed.
My phone data was wiped, which honestly I didn't care about, however I must have done something wrong with the Magisk installation as now I have the rebooting issue.
I'm able to use ADB and have been trying to push a ROM to the sdcard folder of the internal storage. ADB says the file has successfully completed, but nothing is on the phone. I fixed the issue of the storage showing up as 0MB by changing from EX4 to EX2 and then changed it back to 4.
Really unsure of how to flash a ROM if I can't get the file to pushed to the phones internal memory though.
Zeidwinder said:
Curious if you ever managed to get this figured out? I'm in essentially the same situation, though I was not attempting to flash a ROM. I successfully managed to get TWRP 3.5.2 installed and then I was trying to get Magisk installed.
My phone data was wiped, which honestly I didn't care about, however I must have done something wrong with the Magisk installation as now I have the rebooting issue.
I'm able to use ADB and have been trying to push a ROM to the sdcard folder of the internal storage. ADB says the file has successfully completed, but nothing is on the phone. I fixed the issue of the storage showing up as 0MB by changing from EX4 to EX2 and then changed it back to 4.
Really unsure of how to flash a ROM if I can't get the file to pushed to the phones internal memory though.
Click to expand...
Click to collapse
I honestly haven't messed with it since. It was a very cheap extra android phone I had laying around. Once it got messed up I pretty much just put it in a drawer and said "maybe another day"
Related
Hi all,
So, I done effed up. I've been running Elegancia with no problems for a while now, and decided off the cuff to try something new. Long story short, I didn't read properly and ended up flashing an International ROM to my phone by accident. No problem, I think, I'll just ADB sideload Elegancia again.
I boot into TWRP recovery and then find that my computer no longer recognizes my phone. So, I hit restore on TWRP, and restore a backup that I'd made beforehand. After everything finishes restoring, I discover to my dismay that the backup did not include my OS.
Now, when I power up my phone, I can boot only into bootloader. When I try to boot into recovery, the phone is stuck on the TeamWin logo and doesn't move. If I turn on the phone without booting into bootloader, I'm stuck on HTC's logo. My primary goal right now is just
In conclusion, I have no idea what to do with the following problems:
1. When booting into bootloader, my computer no longer recognizes my device, so I have trouble flashing TWRP. Basically, my computer searches for an HTC MTP driver, and then fails to find one/install one. When I try to update the driver manually by downloading a MTP driver and then installing via Device Manager, Windows tells me I'm already using the most up-to-date version.
2. When booting into bootloader and then going to Recovery, my phone will boot into teamwin's logo ... and then not move from there.
I'm aware that I've screwed up pretty bad-- I've done my best to read stuff that's relevant, though. I'd love more help, please! Thanks in advance. Lots of invisible cookies coming your way.
[EDIT: It turns out TWRP was just taking a really, really, really long time to load. That said, my problem now is this:
- When going to Advanced -> ADB Sideload, my computer does not recognize my device when using adb devices.
How can I make sure that this actually works? Thanks again!]
[EDIT #2: Okay, um, I don't know why, but for some reason my computer now lists my device after going into sideload from TWRP. Maybe something to do with a reboot of my computer. If that's true, I feel really stupid. Will update if sideload doesn't work ... I think the cosmic gods are laughing at me. I guess all I had to do was post in xda-developers so that I could publicly embarrass myself before I fix my phone.]
[EDIT #3: Everything works and I'm dumb.]
"""I recently updated my TF300T to JellyBean 4.2.1. That worked fine. I then wanted to see if I could root this version. I tried 4-5 different custom recoveries, including multiple TWRP and CWM versions. Although they were able to boot to the custom recovery, they could never mount any of the data on the tablet, so I wasn't able to flash any custom roms or root my device. Anyway, I finally installed the latest CWM for the TF300 on JellyBean (6.0.3.1 or something). I still could not mound any tablet data from the recovery. Although installing any of this on a brand new 4.2.1 was incredibly stupid, it gets worse...
I thought that maybe if I did a "wipe data" on the device I would be able to mount it. I then got stuck in a situation in which the tablet would only boot to CWM recovery. I didn't even press the volume key- it would simply go directly to the recovery. This was useless, to say the least, as I could not flash anything or do anything from this.
I then found a way to actually boot into my transformer- I used my PC and typed "adb reboot-bootloader". This gave me the option to cold boot and get into the tablet like normal. However, any subsequent reboots or power-offs would require PC intervention and a cold boot in order to boot into the tablet. This wasn't convenient, although I admin it is much better than where I am now.
I tried multiple times to flash a new recovery, and the same CWM stays on the system. I cannot for the life of me get this stinkin CWM recovery off my device! I ended up trying to wipe my system again, and now I'm absolutely stuck. I can only boot into recovery if I don't do anything on the PC. I can get into fastboot by using a PC, but that's about it. I can't boot into the system after fastboot, and recovery has no rights to change any files.
I can run commands to write new recovery, system, etc using adb, and it sends the file, "writes" it unrealistically fast, and then just says OK as if it was complete. The screen on the tablet doesn't change at all during this, other than the fact that the blinking box for the Fastboot options becomes solid. I have let it sit there for 10-15 minutes and it simply does nothing. (The last attempt was "fastboot -i 0x0B05 flash system blob" where the blob file was the one from the most recent stock firmware download from ASUS.com.) I then have to manually reboot the tablet using the power button, and the whole cycle starts over again.""" I didn't feel like writing all this out so I'm plagiarizing; kill me if you like. I did exactly what he did and got things working the way he did.
Recently though I wiped my hard drive to start a clean windows 7 from scratch and I can't figure out how to get the drivers installed on my computer. As Asus hasn't published them from what I can find and I haven't gotten the android sdk manager to do anything past flashing cmd prompt for a millionth of a second. I basically just need help with the drivers, so any help would be very appreciated. I haven't found anything so far looking through the forums that has helped by the way. I haven't been able to find any threads with solutions yet...
I used the asus pc sync package for the tf300t from asus's website since the tf300tg did not want to download, in any case that with the new google sdk works for me.
Also I noticed issues using anything but twrp openrecovery-twrp-2.5.0.0-tf300t-4.2.blob when it comes to mounting and backups this is the only one that i tried that worked so far.
I have searched a lot on google and xda and havn't found an answer to my issue. Either I'm searching for the wrong thing or I have a very unique problem.
My basic problem is on two Nabi 2's I can't access the bootloader in order to be able to fastboot TWRP (or any other recovery). It just perpetually hangs.
Both tablets boot just fine. Both tablets are on 1.9.37. Both tablets can be factory wiped via the stock recovery.
Both tablets were rooted via TWRP 2.3.3.0 a few years ago in order to install gapps. I wanted to be able to upgrade the tablets to JB when it came out so I used Nabilablite to "return to stock". I followed all of the prompts and it appeared as though everything worked as desired. I downloaded the OTA update told it to install and never looked at the version again...I just assumed it installed. Handed the tablets back to the kids and everyone was happy. Apparently all I did was flash the stock recovery because they are still rooted and have gapps after several factory resets.
Now (a year later) I have realized I was a dufas and didn't actually effect the change I wanted.
If I hold Vol+ & Pwr buttons it loads to the recovery/boot menu with "boot normally" "fastboot protocol" "recovery kernal" and "forced recovery". If I boot normal, the tablet works fine but I can't update via OTA.
If I choose fastboot protocol it just hangs...for ever...HOW DO I FIX THIS!?!?!
If I choose recovery kernal it loads the stock recovery but still wont install any update OTA or otherwise, even from the sd card.
If I choose forced recovery nothing happens, it also appears to just hang.
If I hold Vol- & Pwr button the nabi logo flashes then the device turns off.
If I hold Vol+ & Vol- & Pwr buttons it appears to be the same as just Vol+ & Pwr.
With the tablet on and fully booted I can see it via ADB. I tried using the adb restart bootloader. The tablet reboots but then just hangs never actually loading the boot loader...
I found http://forum.xda-developers.com/showthread.php?t=2587543. But aicjofs mentions seeing a bootloader issue once before.
Usually when it hangs at the Nabi logo it means you don't have the USB cable plugged in or that the fastboot driver is not installed.(Check device manager and see if fastboot driver is installed/no exclimation point). If that's not the issue then it's the bootloader which I have only seen one person have that issue. Depending on which OTA's you have ran there was an update to a Jellybean bootloader so it's possible. That can be fixed with nvflash or placing the bootloader blob in the staging partition.
Also you can always get recovery back without fastboot in Android by dd'ing the recovery over.
For example if the recovery image is on the internal SD
dd if=/data/media/recovery.img of=/dev/block/platform/sdhci-tegra.3/by-name/SOS
Click to expand...
Click to collapse
I have NO idea what dd'ing the recover over is...
Thank you for any help fixing this.
P.S. I have a 3rd tablet that I also used TWRP 2.3.3.0 on to root and install gapps with. I did NOT use nabilablite on that tablet to return to stock. Yesturday I used fastboot to flash TWRP 2.6(something) to flash a JB OTA update which worked fine. It was also able to download and install every other OTA update all the way to the most recent KK with no problems...
najman9 said:
I have searched a lot on google and xda and havn't found an answer to my issue. Either I'm searching for the wrong thing or I have a very unique problem.
My basic problem is on two Nabi 2's I can't access the bootloader in order to be able to fastboot TWRP (or any other recovery). It just perpetually hangs.
Both tablets boot just fine. Both tablets are on 1.9.37. Both tablets can be factory wiped via the stock recovery.
Both tablets were rooted via TWRP 2.3.3.0 a few years ago in order to install gapps. I wanted to be able to upgrade the tablets to JB when it came out so I used Nabilablite to "return to stock". I followed all of the prompts and it appeared as though everything worked as desired. I downloaded the OTA update told it to install and never looked at the version again...I just assumed it installed. Handed the tablets back to the kids and everyone was happy. Apparently all I did was flash the stock recovery because they are still rooted and have gapps after several factory resets.
Now (a year later) I have realized I was a dufas and didn't actually effect the change I wanted.
If I hold Vol+ & Pwr buttons it loads to the recovery/boot menu with "boot normally" "fastboot protocol" "recovery kernal" and "forced recovery". If I boot normal, the tablet works fine but I can't update via OTA.
If I choose fastboot protocol it just hangs...for ever...HOW DO I FIX THIS!?!?!
If I choose recovery kernal it loads the stock recovery but still wont install any update OTA or otherwise, even from the sd card.
If I choose forced recovery nothing happens, it also appears to just hang.
If I hold Vol- & Pwr button the nabi logo flashes then the device turns off.
If I hold Vol+ & Vol- & Pwr buttons it appears to be the same as just Vol+ & Pwr.
With the tablet on and fully booted I can see it via ADB. I tried using the adb restart bootloader. The tablet reboots but then just hangs never actually loading the boot loader...
I found http://forum.xda-developers.com/showthread.php?t=2587543. But aicjofs mentions seeing a bootloader issue once before.
I have NO idea what dd'ing the recover over is...
Thank you for any help fixing this.
P.S. I have a 3rd tablet that I also used TWRP 2.3.3.0 on to root and install gapps with. I did NOT use nabilablite on that tablet to return to stock. Yesturday I used fastboot to flash TWRP 2.6(something) to flash a JB OTA update which worked fine. It was also able to download and install every other OTA update all the way to the most recent KK with no problems...
Click to expand...
Click to collapse
EDIT: OOOPPS. I didn't see this was in the XDA Assist section. I'm not suppose to answer questions(I was just searching for Nabi questions and didn't notice this was XDA assist), dedicated XDAers just point you in the right direction in this section. Please ask the question again in the Nabi2 section and I'l come help you. http://forum.xda-developers.com/nabi-2
This might help answer some questions http://forum.xda-developers.com/nabi-2/general/nabi-information-t3229119
If it just hangs at fastboot protocol then the USB connection isn't good or fastboot driver isn't installed most of the time. Can you verify fastboot shows up in device manager?(I know the 3rd tabet worked OK) .
Nabilabite doesn't do anything that should change the bootloader, and fastboot should still work as it did before.
dd'ing recovery over means that you use the root access you have in Android to flash the recovery partition instead of using fastboot. IT's just another way of getting the TWRP recovery on the tablet.
The stock recovery won't install the OTA because when you added Gapps it changed some fies and the OTA sees those files as invalid and will fail.
Forced recovery always looks blank screen. It's waiting for you to give it a bootloader to run(beyond the scope here).
You should be able to get back on track once you have TWRP loaded. It's one of 3 things. Bad USB connection, fastboot driver not installed right, bootloader damage. Check the first 2 issues despite the fact the 3rd tablet had no such problems.
One of the XDA smart guys fixed my error of posting this in the wrong section.
I'm running Windows 7 Ultimate and have installed and re-installed the drivers several times. When the tablet's are fully booted ADB has a good connection and sucessfully sends the command to reboot. So I don't believe there is a driver or USB cable error...
When the tablets hang on the fastboot protocol my computer makes the usb connecting noise but fails to install the drivers...
When I hit forced recovery I hear the unrecognized USB device sound...
These two things make me think I don't have the proper drivers installed...but I don't understand how the driver's work when the tablet is booted but not when trying to access the boot loader.
It appears as though I'm going to have to try the dd method if you are able to point me in that direction please.
EDIT: Now I'm thinking I really DON'T have the fastboot drivers installed. I just plugged the 2nd tablet that hands on the fastboot menu and fastboot failed. I also booted the tablet completly, the adb driver's installed correctly but the fastboot driver's did not...I have installed the 64 bit driver's included with nabilablite. I can't find any actual other downloads. The 15 second ADB installer didn't change anything...
najman9 said:
One of the XDA smart guys fixed my error of posting this in the wrong section.
I'm running Windows 7 Ultimate and have installed and re-installed the drivers several times. When the tablet's are fully booted ADB has a good connection and sucessfully sends the command to reboot. So I don't believe there is a driver or USB cable error...
When the tablets hang on the fastboot protocol my computer makes the usb connecting noise but fails to install the drivers...
When I hit forced recovery I hear the unrecognized USB device sound...
These two things make me think I don't have the proper drivers installed...but I don't understand how the driver's work when the tablet is booted but not when trying to access the boot loader.
It appears as though I'm going to have to try the dd method if you are able to point me in that direction please.
EDIT: Now I'm thinking I really DON'T have the fastboot drivers installed. I just plugged the 2nd tablet that hands on the fastboot menu and fastboot failed. I also booted the tablet completly, the adb driver's installed correctly but the fastboot driver's did not...I have installed the 64 bit driver's included with nabilablite. I can't find any actual other downloads. The 15 second ADB installer didn't change anything...
Click to expand...
Click to collapse
Uninstall those nablablite and try this one. http://forum.xda-developers.com/showpost.php?p=62826514&postcount=2639
Or look at the other options in section 4 here http://forum.xda-developers.com/nabi-2/general/nabi-information-t3229119
Hi all,
I tried to back up my samsung galaxy ace and when accessing the playstore the device froze and upon a battery pull
started to get stuck on the samsung logo or a continual system reboot without ever making it into android. I tried a long battery pull, rebooted the system and wied the cache partition none of which worked.
I was hoping to get the text messages and contacts off the internal storage so these can be transferred to a new phone.
Since then I have downloaded the SDK kit for google and downloaded the ADB drivers and can access ADB from a command prompt window.
I am hoping to be able to use ADB to use the "pull" command to retrieve files from the internal storage but when using the ADB devices command the phone does not show up so doing anything with ADB is not an option.
When I put the phone in download mode windows recognised it with an exclamation mark. I downloaded Kies and then windows started associating it with a CDC driver (whatever that is) but I cannot force windows to see the ADB driver.
I have tried manually pointing it to the ADB driver stored within the SDK ...folders but it just won't see it.
Further, I downloaded Clockworkmod for the galaxy ace as I hoped that it would give me options to boot into nandroid and get the files that way. It said the upgrade of firmware worked but now unless I force download mode when starting up, the phone goes straight in to the reboot system now, apply update etc menu but then says"E:failed to mount /system (Invalid argument)" twice and that's it.
I do not have usb debug enabled.
So, help needed please all you kind people out there. How I make windows see the ADB drivers or get it to recognise the phone for ADB access or is there any other way I can get these files off, by installing CWM I've only played around with the boot software and not the actual OS so the data should still be there, am I right?
These texts messages are more than important , both they and the contacts are crucial.
This all happened when I was trying to back up the data and now I can't.
I don't need to spare the phone just the data, surely someone somewhere can get at it?
Thanks
mr_stupot said:
Hi all,
I tried to back up my samsung galaxy ace and when accessing the playstore the device froze and upon a battery pull
started to get stuck on the samsung logo or a continual system reboot without ever making it into android. I tried a long battery pull, rebooted the system and wied the cache partition none of which worked.
...
When I put the phone in download mode windows recognised it with an exclamation mark. I downloaded Kies and then windows started associating it with a CDC driver (whatever that is) but I cannot force windows to see the ADB driver.
I have tried manually pointing it to the ADB driver stored within the SDK ...folders but it just won't see it.
Click to expand...
Click to collapse
Sounds similar to what happened to me, although on my LG G4. The phone randomly froze and then from there only would bootloop the LG screen, never making it to the Verizon screen. It turned out that components came loose within the phone which caused the boot to fail, as it was a known G4 issue.
What happened with my phone is that my computer wouldn't recognize it as anything other than my processor, and I could only stay in Download mode for about 1 minute before power off. Recovery mode literally had no effect other than "power off".
Personally, I wasn't worried about my data, so I sent it off to be repaired, but while searching around I found this post (can't post links yet, sorry):
Code:
forum.xda-developers.com/att-g4/general/lg-g4-stuck-bootloop-rma-solution-t3279690/post67131904#post67131904
This may be a way to get the data off, BUT ONLY IF you are suffering from the same issue. I'm sorry to say, but it is probably NOT the same issue, but seeing how no one has responded yet I figured I'd through you a lifeline. It's a possibility.
Best of luck to you though, and sorry I couldn't really answer the question.
Previously, I had this phone rooted, and running CM12 with an open source gapps setup, with no problems. I also had TWRP installed, and an SD card with a copy of my ROM as I liked it, and my data.
Everything worked, and I was able to update my Android version and expand functionality quite a bit, which was useful while traveling abroad.
The other day however, when seconds before I had been using it as my hotspot, I tripped over the charging cord and dropped the phone quite hard on tile.
It broke into pieces, with the back coming off and the battery coming out.. The display is fine. I thought I killed it entirely, but I took the battery out and left it alone for half a day, and when I came home, I realized that it would:
1. Charge
2. Boot to recovery
3. Boot to download
This gave me some hope.
However, doing anything else would result in a bootloop.
I booted into recovery in preparation to re-flash my rom, and TWRP was not able to mount my SD card, and would not recognize my data there.
Additionally, when I tried to wipe everything but my SD card, TWRP failed to mount all partitions, as if something got corrupted.
When I tried to repair or change the file system type, this too failed. I cannot seem to get TWRP to recognize any storage. It says the phone is empty, with no internal, no external, and no OS.
Just a bunch of red "failed" lines every time I try to do something through the recovery.
I checked my SD card externally using an adapter on my mac, to make sure it was not corrupted. All my data is still there, including the backup of my ROM. However, since the phone will not recognize it, it's useless, and I can't find an Odin flashable .tar version of the CM12 ROM for this phone, plus when I tried to convert a copy to the correct file type, it failed to flash.
I tried to flash a copy of the stock rom (metroPCS version) to begin with, that I had saved on my computer.... which worked before when I messed up my initial flash. This time, It will flash successfully per Odin, but cause a bootloop.
Odin will still recognize my device... but adb from my mac terminal will not recognize it when I have the device connected or I would try to rebuild the file system that way.
I feel like I am going in circles and running out of options, or missing something..(possibly several things) but... I don't want to give up on this phone just yet, even if I had to demote it from daily driver use in the end ... any advice would be appreciated.... Thank you sooooo much!
Edited to add: I got ADB to recognize the device and ran a restore command, based on a file I had locally. This is what happened:
localhost:~ user$ adb restore ~/Downloads/cm-12-20150319-UNOFFICIAL-gardalte.zip
Now unlock your device and confirm the restore operation.
/sbin/sh: /sbin/bu: not found
Also adb remount resulted in a failed output.
Lastly, it appears abd only works in terms of recognizing my device when I am in recovery.