[Q] Broken boot and recovery image adb and fastboot can not see my device - Nexus S Q&A, Help & Troubleshooting

Hi there,
Long story short, I flashed the latest CWM recovery via the rom manager app, then tried to boot to recovery - but it just went into the bootloader.
Rebooted and tried flashing several recoveries form rom manager to no avail.
did some googling and there was a suggestion to flash the recovery to the boot partition - tried it and now I am stuck. I should have thought before I did this.
No I am stuck with a phone that will not boot into the android OS, I can get into the bootloader and if i select recovery I just get the "google" screen. adb and fastboot do not recoginse the phone when I use the devices command.
do you have any suggestions? I am already in android withdrawal

Hi All,
I am an idiot - I forgot to run fastboot as root (running linux) - I feel like such a noob. At least I had it plugged in
Anyhow Flashed CWM - doing a backup and will be flashing a rom to get back up to speed.
next thing to do is move the fast boot out of ~/bin/ to /usr/bin/ so I can easily run fastboot as root.

Related

Stuck on Google splash screen after flash of rom.

After about a month of my phone rebooting itself or freezing up on me, I decided to flash a new rom. I made sure I had the most recent TWRP v2.8.7.1, wiped my cache and did a factory wipe. I attempted to flash BlissPop v3.9 and it failed stating, "This package supports booloader (s): HHZ12h; this device has bootloader HHZ11d.
It rebooted and now just sits on the Google splash screen. I can turn it off and manually get into the bootloader screen and TWRP.
How will I be able to download another rom from my computer and put it onto my phone? Please be nice, I really suck at adb. I can I access my phones memory while its in Recovery mode?
And no, I was a dumbass and forgot to back up before I attempted to flash the rom.
abd push (drag desired rom here) /sdcard
After that boot into recovery and flash it. If you can't get to the phone that way then download the factory image from google and fastboot flash, or alternatively download the twrp image and fastboot boot (twrp img) again, just drag the file into the command prompt. If you boot into twrp, or just flash it, you can then push the rom.
Just flash the newer bootloader
Sent from my Nexus 5 using Tapatalk

Unbrickable tf300t

Hello everyone. I am new around here and totally new with android devices. I got my tf300t, installed twrp and flashed to the newest android version. Then my dad suddendly pressed something like restore to the manufactory setting and after that it rebooted and just keep booting with teamwin logo. I can not access twrp recovery mod, it is just in boot loop. I managed to get adb to work, but no fastboot since it does not boot into recovery mode. When I am in adb I can browse the device but the adb reboot bootloader does not work at all. It just hangs there. I can not power off the device because it does not let me, I can not boot into recovery mode with powerbutton and volume down button. After a long power button press it only reboots. I even tried with hard reset button but still the same. Could You please help me somehow? I really need that device for school and I would like to get back into the stock android. Thank you so much for any help.
//edit : I also forget to mention, when I execute adb deviced it shows:
List of devices attached
0123456789ABCDEF recovery
Also the device is unlocked.
Did you tried: adb reboot recovery ?
Did you tried to flash recovery again?
Be sure to use the right recovery for your bootloader. Did you upgraded bootloader to latest ASUS one? One then you're able to flash current recoveries like TWRP like 2.8.5.0 oder 2.8.7.0.
Edit: Also take a look here -> http://droidmodderx.com/prime/?page_id=74
Hello sir. Thank you for answering. I tried adb reboot recovery and it just hangs to be executed... But the tablet is still flashing the teamwin logo. I have the same bootloop as the guy on youtube called Francis Domingo and video called Samsung s5 stuck at TWRP Recovery boot loop (unfortunately I can not add link here).
//edit: Thank you for the link. It look like I have to use option 1a. Is it safe to use that command and I will not make it even more bricked? Thank you so much
//edit2: Now I just realized how to turn off the device to stop from rebooting. I just long pressed power button and up volume button and after the screen went black I kept holding the up volume button. I didn't work with down volume button or if I stopped holding the up volume button after black screen it rebooted again.
//edit3 : Let's say if I get to the twrp mode with option 1a from the link, what do I have to do next to get back to the stock rom (I think it was something like 4.0.3) ? Thank you
What the guy does in 1a is wiping mmcblk0p3.
Afaik mmcblk0p3 is the staging partition. That would be my guess anyway if you had access to fastboot. Usally when you can't boot into recovery, something is wrong in staging. I got the same problem 2 days ago. In this case you usually wipe staging partition via fastboot.
Since you got no fastboot access, you have to try with adb.
After cleaning the staging partition you can flash any recovery you want back again.
The recovery must be flashed to mmcblk0p4 <- 4!!! is the recovery partition. (but you should wipe mmcblk0p3 (3!!!) before)
So I would say, try what solution 1a suggests.
Edit: You can go back to stock android if you want, but there is no reason for this. My advice would be to unlock and root your device, upgrade to latest boot loader (which is done by upgrading to latest stock rom), then flash TWRP 2.8.5.0 and then a useful ROM on top. I'm using the one from timduru which is very nice. You can find it here: http://forum.xda-developers.com/transformer-tf300t/development/rom-t2932783
Thank you for the answer. Could you please write a step by step to get out of brick and to get the stock version, because the newer one I installed was many times slower. The reason why I would like to have step by step is because I don't wanna mess it even more than it is. Thank you so much.
//the stock rom was much more faster than the one I have installed, I mean... the boot time wad unbelievable slow, same with responses and wifi problem. If there is any other faster rom than stock I would be happy but I don't wanna mess with any bugs or slow boot speed and I can not wait minutes until it boots.
Hm, try the Option 1a from the link.
If done, boot into current recovery. Tell me which version and which recovery do you have.
Top on this we can decide what to do to flash a good ROM.
I had the exact same thing happen to me yesterday. Option #1 worked for me.
I did the steps from option #1 and powered down using the volume up + power. I then tried to boot into TWRP recovery, which only reproduced the same issue.
I redid the option #1 steps, and this time powered down using the power + volume down. I powered back up normally, and it rebooted normally into the ROM.
The tablet now works normally, and I can also boot back into TWRP recovery with no issues.
Thanks for the thread and the link.
Thank you so much Catscratch! After I executed both command from option 1a I can get into the screen, where it shows three options: RCK, Android, Wipe Data
In the top left corner, there is written:
Key driver not found.. Booting OS
Android cardhu-user bootloader <1.00 e> released by "WW_epad-10.6.1.27.5-20130902" A03
Starting Fastboot USB download protocol
The tablet can boot into the last ROM but as I said, I would like to have the faster and less buggy rom than this. When I open the settings and click about button there is written: CyanongenMod: 12.1-20150814-NIGHTLY-tf300t and Android version 5.1.1.
If I start RCK it just brings me back to the loop, but now I have fastboot available as it said above and I can list the fastboot devices on computer, which I couldn't before. Should I just execute this command from the computer "fastboot -i 0x0B05 flash system blob" and then "fastboot reboot" or should I download ROM from asus.com/Tablets/ASUS_Transformer_Pad_TF300T/HelpDesk_Download/ -> OS Android -> Firmware and now I don't know which should I choose: If JP or CN or WW or US or TW (Probably US right?). After that should I execute "fastboot -i 0x0B05 flash recovery firmware.img" and then "fastboot reboot" ? Or which ROM should I download to make it even faster and less buggy than stock ROM? Thank you so much again, You saved my tablet
//After I unzipped downloaded US ROM there is no img file. If I remember right the img file is only recovery to reflash the actual one and then when I start the twrp recovery I will select zip file with rom right?
OK, first of all to continue...I assume you got root access. (I think you should have, because you already got CM installed)
Next. Downloads.
Download: https://twrp.me/devices/asusTF300T.html
Also Download ROM+SuperSU: http://forum.xda-developers.com/transformer-tf300t/development/rom-t2932783
And GApps: http://forum.xda-developers.com/android/software/app-minimal-gapps-gapps-lp-20150107-1-t2997368
Push all files to sdcard with "adp push" or in CM. Like you want.
Flash TWRP. (you can skip this step if you already got TWRP 2.8.5.0 or higher version). You don't need latest one.
fastboot -i 0x0b05 flash recovery twrp.img
fastboot reboot
- or -
adb reboot recovery
Now, go into recovery and wipe everything:
- cache
- dalvik
- system
- data
After that flash ZIPs from sdcard. (use "add more zips" option)
1. ROM
2. Gapps
3. SuperSU
Next: Wipe cache and dalvik again (only these two).
Reboot and wait. First boot can take some minutes.
Thank you so much again. Everything work perfectly The rom looks a lot faster than the older one I had there. No issues yet at all. Just awesome. Thank you so much. Really appreciate your kindness and help. You have a nice day !
Thanks. Have fun with your tf300.

Phone's bootloader not working

Hello,
I was trying to change file system type to f2fs. For that, i wiped everything in my phone lenovo A6000plus. Then i got out of recovery without flashing another rom.
So now my phone is stuck on logo screen. I connected it to pc but adb doesn't detect the device as there is no rom currently. I tried all the key combinations to go to recovery but it didn't work. However, fastboot detects the device but i can't seem to boot into bootloader using fastboot command. It appears as if somehow i deleted the bootloader. Also i couldn't find a way to boot into recovery from fastboot. I also tried flashing zips and images from fastboot to system partition but it didn't work.
Please help.

stuck at bootloader , No OS No Recovery :(

hi my oneplus 7 pro 1910 stuck at bootloader and when i press start or recovery it gets back to the bootloader screen i cant even turn off the phone
i accidentally wiped all partitions in twrp and made a format .
anyhelp ? ive tried to do the fastboot rom flash but my pc doesnt detect my phone
i tried almost every solution i found but nothing works
Your bootloader needs to be unlocked to use a fastboot ROM.
Is it unlocked?
@soka said:
Your bootloader needs to be unlocked to use a fastboot ROM.
Is it unlocked?
Click to expand...
Click to collapse
Yes it’s unlocked , any help
Search on the fast boot rom thread for the fast boot rom version you were last on, i have used this many times and it worked.
One thing to note, after it flashed everything , I ended up in crash dump error. I went into stock recovery and wiped/formatted my device and it boot up great.
https://forum.xda-developers.com/t/msm-tool-guac-for-all.3934691/ - just follow this guide
One thing that worked for me is when your phone is plugged into your pc open a command prompt and type fastboot boot twrp-*.img (make sure it is the .img not .zip), and from there download the twrp installer .zip and flash that, reboot to recovery, and install the OTA for your device (OTAs can be found at this thread).
If it fails to boot and gives you an error, try fastboot getvar all to see which slot is currently active then do fastboot --set-active=*inactive slot letter* then fastboot --set-active=*original active slot letter* then try to boot to the twrp .img from fastboot again. If fastboot doesn't detect your device at all, try seeing if adb devices outputs anything, and if it does type adb reboot bootloader

Need help needed with fastboot(loop)

I've decided to upgrade to OOS11 stable and patch the boot before going into the rom. What I did was:
1. Flash latest TWRP (3.5.2_9-0)
2. Reboot to recovery
3. Flash ONLY OOS11 boot.img
4. Flash TWRP again
5. Install Magisk and Kirisakura-R 1.1.1 kernal (for f2fs support)
6. Reboot to recovery
Here I was going to do the same on other partition but TWRP failed to boot and screen kept flashing but I noticed that ADB was connected so I rebooted to fastboot and flash stock boot I've previously extracted from stock ROM. Now I face another problem, phone doesn't boot anywhere else but fastboot.
I've tried a few stuff to get it back.
# There were some cases where the phone won't boot with bootloader unlocked and stock boot so I managed to patch boot.img with Magisk using an emulator and then flash it.
# Tried booting into TWRP but phone phone would get stuck in "Fastboot mode" screen with fastboot still connected (And taking commands from PC).
# Tried flashing TWRP to boot partition which worked previously but this time the problem stayed and kept booting into fastboot.
A few more points that I should mention,
# I've backed up my entire phone using TWRP so I can unbrick it if I somehow manage to get into TWRP
# I don't have the backup on my computer. It's on the phone.
I absolutely can't lose those data. Yeah, mistake on my side for not backing up on my computer but to my defense, this never happened before so I let my guard down this time.
What options do I have left? Any hint would be appreciated. Thanks for reading

Categories

Resources