[Completed] [HELP] Nexus 5 stuck on bootloop and recovery load-up - XDA Assist

Hi there,
I've got quite a peculiar problem with my Nexus 5.
Last night, I left my phone on charge. It was working normally and the software was functional etc. However, once I woke up, the phone was constantly restarting itself, and wouldn't load past the boot animation. I tried to load up fastboot to enter the TWRP recovery, however, the phone froze on the load screen. I should also add that my custom boot animation was replaced by the CyanogenMod mascot.
This problem has never occurred before, and I really haven't got a clue how to fix it. I tried to use WugFresh's NRT to flash a factory image of Android 6, however, the command terminal indicated that each process had failed. This did not restore the phone to its original condition.
I should also point out that I have been running a CM 12.1 nightly, which has been very stable and I have been using this nightly, without major problems (bar the infrequent system UI crashes) for a couple of months. It is obviously rooted and I have a Nandroid backup, which I can't access for aforementioned reasons.
Please help me to bring back my phone! This is literally driving me nuts, and I haven't so far found a solution that works! I would be happy to clarify and elaborate upon any point of information.
Thanks,
Sami

iamsami13 said:
Hi there,
I've got quite a peculiar problem with my Nexus 5.
Last night, I left my phone on charge. It was working normally and the software was functional etc. However, once I woke up, the phone was constantly restarting itself, and wouldn't load past the boot animation. I tried to load up fastboot to enter the TWRP recovery, however, the phone froze on the load screen. I should also add that my custom boot animation was replaced by the CyanogenMod mascot.
This problem has never occurred before, and I really haven't got a clue how to fix it. I tried to use WugFresh's NRT to flash a factory image of Android 6, however, the command terminal indicated that each process had failed. This did not restore the phone to its original condition.
I should also point out that I have been running a CM 12.1 nightly, which has been very stable and I have been using this nightly, without major problems (bar the infrequent system UI crashes) for a couple of months. It is obviously rooted and I have a Nandroid backup, which I can't access for aforementioned reasons.
Please help me to bring back my phone! This is literally driving me nuts, and I haven't so far found a solution that works! I would be happy to clarify and elaborate upon any point of information.
Thanks,
Sami
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Hello, and thank you for using XDA Assist!
Looks like you made your way to the right spot. Cool!
Hope it helps.

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[Q] fastboot: waiting for device

HI Guys,
I've seen similar threads, so I'm sorry if I'm adding clutter, but I can't find anything that works yet.
Stats:
LG Phoenix P505
Android 2.0.3
Windows 7
I tried to do an upgrade to CM10 a while back, and I almost bricked it. I found this thread and tried it several times. Not sure if it worked or the phone corrected itself, but it was communicating with my PC.
http://forum.xda-developers.com/showthread.php?t=1088046
Now all I wanted was to do a ROM backup with ROM Manager. That's it. Just thought it would be a good idea to back up the system. I select the operation and the phone reboots (expected). First I get the LG screen (normal), it skips the LG animation screen and goes to the Service providers animation screen, and gets stuck in a loop. I let it go for almost an hour in case it was actually doing the backup, but figured it should have been done by that time.
I reboot several time and ended up at the same place. I then tried to do the above thread again, but at the command prompt it kept saying, "waiting for device". I uninstalled the LG drivers and re-installed with the same results.
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[Q] Asus TF300T boot loop CM11/OMNIROM logos

(backstory) Hi, ive had an Asus TF300T, for about 3 years now, unlocked, rooted it pretty early on... cycled between cyanogenmod and omnirom quite a bit, without really any major issues. Until today, i was running Cyanogenmods latest nightly build (CM11 Nov 5 2014), it worked just as any other nightly does a few bugs here and there, but nothing major and i hadn't done any major flashing or modding to the device. On my home from university, I turned my tablet off. And when i got home i plugged in the charger, and just as always the tablet turned on, showed the stock Asus screen, then changed to the Android boot animation... the animation then suddenly froze, and the device went into a boot loop... continuously... I dont know whats weong with it... tried to do a factory reset, i tried reinstalling the ROM, tried installing omnirom, but that got stuck on the OmniRom animation...
Im running Asus build 10.6.1.27.5
I had TWRP v2.7.0.1 installed but have now no longer works
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Edit: I dont know why, but when i try using fastboot or adb, the device isnt recognized. It doesnt show up on device manager either. I dont know if its the cable cause i bought it new, it says its can sync data, or a faulty charge/sync port....
razr9622 said:
(backstory) the tablet turned on, showed the stock Asus screen, then changed to the Android boot animation... the animation then suddenly froze, and the device went into a boot loop... continuously... I dont know whats weong with it... tried to do a factory reset, i tried reinstalling the ROM, tried installing omnirom, but that got stuck on the OmniRom animation...
Im running Asus build 10.6.1.27.1 (I know that theres a newer version 10.6.1.27.5, but when i try to flash it, the recovery says error and fails)
I have TWRP v2.7.0.1 installed but have now no longer works
id really hope there is a solution for this!
Thanks!
Click to expand...
Click to collapse
^THIS!
I was just to open a similar thread, then i saw your post. I join your request for help!
A month ago i have done a favor to a friend by unlocking his tf300t and installing CM11 on it. A few days ago he comes to me with this problem. I've tried anything but still no success:
- restore a backup done before flashing CM11 --> restore ends correctly but the problem remains
- flash a rom (CM11 and OmniRom) --> flash ends correctly but the problem remains
- flash the stock firmware found on asus website (WW_epad-user-10.6.1.27.5.zip, the SKU is correct for my version) --> the flash process stuck (i had to force restart the tablet after almost 2 hours of "flashing")
Since the boot animation changes according to the rom, i suppose the flashing process works. But the problem remains: after a few seconds the animation freeze and the device restarts, in loop.
Informations on the system:
- build 10.6.1.27.5
- TWRP v2.7.0.1 (working!)
- adb works (i managed to set /data as rw and push the .zip file to flash)
- fastboot should work
Please help! I feel a bit responsible for bricking my friend's device
SOLVED!
Finally!
I had already tried this method, before requesting for help, but the first time didn't worked... I don't know why this evening the tablet decided to collaborate:
http://forum.xda-developers.com/showpost.php?p=44244313&postcount=12
That worked for me! :victory:

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Hi there,
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