wiped OS after losing root, can't boot past Google screen - Nexus 4 Q&A, Help & Troubleshooting

I was on 4.3 stock rooted and attempted to upgrade when I got prompted by the recent security update. I'm guessing that when I did that I lost root. (I remember franco couldn't really operate anymore.) I went into TW recovery and then (in the order stated) pressed Format Data, lost my encryption and successful formatted, did an advance wipe, and then swiped for factory reset.
When I went to reboot system it said on the top "No OS Installed! Are you sure you wish to reboot?". I didn't pay heed to it and lord behold now I can't get past the Google screen when you start up the phone. Any suggestions?
edit: should also mention that I hadn't configured my drivers yet on my laptop (had to do a factory reset on that too)

Alright, fixed. For those curious (or noobs such as myself) use this guide: http://forum.xda-developers.com/showthread.php?t=2010312

Related

???Can't wipe phone/factory reset???

Ok so here is what is going on with my ATRIX... I have searched for answers and not found any so here I am. I wonder if anyone else has seen this. Please note I am not new to flashing, rooting, romming, etc... This week is my first go around with the ATRIX (or any other moto for that matter).
So I went from rooted 1.8.3, unlocked the BL, and was immediately prompted for the 4.51.9 OTA upgrade. I did this and everything was fine when done. No data loss or issues. I of course lost root and the unlock, so I went to taking care of this.
I rerooted but waited a few days and read more before unlock because of known brick issues. I didnt want to be there!
next I decided to try ROM MANAGER to flash CMW. Flashed but of course needed to unlock BL so I used the auto method by mramirez (auto script for known methods). Anyway no matter what I did after unlock I had to reflash everytime the recovery to be able to boot into it. It would not hold, and after 1 or 2 boots I would be back to android stock recovery.
So then I decided to try a rom or to. Flashed ninja and gingerblur with no issues, wiped data, cache, dalvik and rebooted into new rom with all my data still intact!!!! I wiped again, factory reset from recovery... still there! I did a factory reset from within android... still there!!!!
SO.... next I decided I need to flash moto firmware 4.51.9 to get back to stock. Did this and rebooted. Back to stock YES. Rooted-NO. All data still there!
SO... I reunlocked with the method that should have wiped my device and rooted again, install tenfar's CWM. Rebooted and all my stuff is still there!
Guys I am talking everything, accounts, wifi settings, alarms etc. All this flashing and wiping and resetting and I still retain everything!
Anyone care to take a stab at why?
EDIT: So far this time around CWM has stayed put after several reboots but I have not tried a reset today. (It is kinda nice not losing all that but I am pretty sure I should have lost it!)
You just need to delete the following file first:
/system/etc/install-recovery.sh
then you need to install again CWM as you did before.
What is happen is everytimr you reboot the phone is checking the recovery partitions and if the check is different it will rewrite the stock recovery, so you need to delete or rename that file and that will solve the issue...

[Q] Unmodified Nexus 4- boot loop?

Hi,
I am writing this on behalf of my mother's phone. She has a completely stock Nexus 4 on Net10.
This phone hasn't been touched by a computer. Any development settings are also disabled.
I came home from work and my mom showed me that her phone wouldn't boot. It was boot looping on the "X" boot animation.
So I went ahead and accessed the boot menu and selected recovery and did a cache wipe. No help. I let the phone run out of battery and charged it back up, no help.
I have no clue what happened. The phone was working fine previously. Again, the phone has NOT been unlocked, rooted, etc. Completely stock Nexus 4.
I would like to fix her phone but I would also like to keep her data intact. She even told me it is very important to "keep everything on the phone".
Any assistance would be great.
xrawritsjack said:
Hi,
I am writing this on behalf of my mother's phone. She has a completely stock Nexus 4 on Net10.
This phone hasn't been touched by a computer. Any development settings are also disabled.
I came home from work and my mom showed me that her phone wouldn't boot. It was boot looping on the "X" boot animation.
So I went ahead and accessed the boot menu and selected recovery and did a cache wipe. No help. I let the phone run out of battery and charged it back up, no help.
I have no clue what happened. The phone was working fine previously. Again, the phone has NOT been unlocked, rooted, etc. Completely stock Nexus 4.
I would like to fix her phone but I would also like to keep her data intact. She even told me it is very important to "keep everything on the phone".
Any assistance would be great.
Click to expand...
Click to collapse
Try the following:
- wipe cache and dalvik cache
- Flash a custom kernel
- See if boots
- Make a complete UROOTED backup and save it in the computer
- Flash factory image and relock bootloader
- Restore backup
Tell us if worked
By flashing a custom kernel it is required to unlock the bootloader which will wipe the entire phone.
Your only hope is to use stock recovery to install a signed OTA package (if it's on 4.3 wait for 4.4 ota package).
http://forum.xda-developers.com/showthread.php?t=2145848
sent from xda premium app

[Q] Can't wipe or factory reset encrypted phone

I made the mistake of encrypting my phone and am now paying the price. It is rooted and I had installed the Google Edition 4.4.2 ROM by Danvdh, Kryten2k35 & Ktoonsez. I'm using TWRP 2.7.0.1.
I first tried going into recovery and doing a factory reset and got the an "Unable to mount '/data'" error, followed by a big red FAIL. So I rebooted into the system and tried to do a factory reset from there. Went through all the steps, phone rebooted into recovery and I got the same error - unable to mount.
So I did a bit of searching on the forums here and someone had suggested using the format option in TWRP. So I did that and it seemed to work - did not get the dreaded unable to mount error. So I tried flashing the new rom (the updated version from a couple of weeks ago). Got a message indicating it was successful. Rebooted, and to my dismay, got the prompt for the encryption password. Saw the little line drawing Android, then... nothing - I found myself in brick land.
Managed to get back into TWRP and, based on another post I found, tried Advanced Wipe, selecting everything except Micro SDcard and USB-OTG. Tried installing the new ROM again, says successful, but nothing has changed - I still boot into blackness after inputting my encryption password.
Not sure what else to try. Any suggestions would be most appreciated.
not_su said:
I made the mistake of encrypting my phone and am now paying the price. It is rooted and I had installed the Google Edition 4.4.2 ROM by Danvdh, Kryten2k35 & Ktoonsez. I'm using TWRP 2.7.0.1.
I first tried going into recovery and doing a factory reset and got the an "Unable to mount '/data'" error, followed by a big red FAIL. So I rebooted into the system and tried to do a factory reset from there. Went through all the steps, phone rebooted into recovery and I got the same error - unable to mount.
So I did a bit of searching on the forums here and someone had suggested using the format option in TWRP. So I did that and it seemed to work - did not get the dreaded unable to mount error. So I tried flashing the new rom (the updated version from a couple of weeks ago). Got a message indicating it was successful. Rebooted, and to my dismay, got the prompt for the encryption password. Saw the little line drawing Android, then... nothing - I found myself in brick land.
Managed to get back into TWRP and, based on another post I found, tried Advanced Wipe, selecting everything except Micro SDcard and USB-OTG. Tried installing the new ROM again, says successful, but nothing has changed - I still boot into blackness after inputting my encryption password.
Not sure what else to try. Any suggestions would be most appreciated.
Click to expand...
Click to collapse
Can you go into download mode, revert back to a stock rom (or flash a stock one or something) and turn encryption off? edit: on further research it looks like the only way to completely unencrypt is to reset your device. dunno if that's something you'd want to try, but considering you already wiped multiple times.. i'd say try it?
Also what carrier do you have? That's pretty important. AT&Ts i337 and Verizon's variant cannot flash AOSP roms (more specifically, kernels) due to the bootloader being locked. That might be the issue you're experiencing? I looked up the ROM and it's using ktoonsez kernel, so I imagine that'd be why. Someone just made a version that does not include the kernel and has multiple issues the ROM you're trying to use fixed here.
Rhymey said:
Can you go into download mode, revert back to a stock rom (or flash a stock one or something) and turn encryption off? edit: on further research it looks like the only way to completely unencrypt is to reset your device. dunno if that's something you'd want to try, but considering you already wiped multiple times.. i'd say try it?
Thanks - that's exactly what I've been trying to do. I haven't tried reflashing back to stock with Odin though. Hmmm...
Also what carrier do you have? That's pretty important. AT&Ts i337 and Verizon's variant cannot flash AOSP roms (more specifically, kernels) due to the bootloader being locked. That might be the issue you're experiencing? I looked up the ROM and it's using ktoonsez kernel, so I imagine that'd be why. Someone just made a version that does not include the kernel and has multiple issues the ROM you're trying to use fixed here.
Click to expand...
Click to collapse
Bell, up here in the Great White North. I don't think locked bootloader is an issue - I was on the previous version of Danvdh's ROM, and everything was hunkydory. I just made the unfortunate decision to encrypt. Big mistake.
May try flashing back to stock. Nothing to lose, at this stage...
Thanks!
Hey just wanted to mention for the benefit of anyone else who got into this bind, flashing back to stock using Odin did the trick. Still wouldn't boot, but then I rebooted into stock recovery and did a factory reset, and finally was able to reboot back into stock. What a nightmare. Ugh. Thanks for the tip though - never occurred to me to try to go back to stock. Lesson learned though - no more encryption for me!
not_su said:
Hey just wanted to mention for the benefit of anyone else who got into this bind, flashing back to stock using Odin did the trick. Still wouldn't boot, but then I rebooted into stock recovery and did a factory reset, and finally was able to reboot back into stock. What a nightmare. Ugh. Thanks for the tip though - never occurred to me to try to go back to stock. Lesson learned though - no more encryption for me!
Click to expand...
Click to collapse
Good to hear. Should be able to flash to the rom once again no problem now that it's unencrypted!

Stuck at boot screen animation... was working fine!

I'm not sure what happened with my US Axon 7. I was getting it ready to give to my son, and now it won't boot. Even with a full wipe (including system) and reinstall of the OS. It tries to boot, but just sits at the Google animation forever.
Here is basically the steps of what happened during the wipe/install of the unofficial RR Oreo build:
- Wiped everything
- Flashed the B32+B10 bootstack (A2017X_BootStack_B32+B10.zip)
- Flashed the latest (at the time) unofficial RR Oreo build (RR-O-v6.0.0-20180511-axon7-Unofficial.zip)
- Flashed opengapps micro (open_gapps-arm64-8.1-micro-20180512.zip)
- Flashed Magisk 16.0 (Magisk-v16.0.zip)
- Booted up and setup the phone for his google account
- Rebooted multiple times during setup
- Installed TiBu and froze the apps I normally freeze for the kids.... things they don't need
- Rebooted one final time and got stuck on the boot screen
- Re-performed steps above (minus setup... because I still can't get it to boot)
The best I can figure is that I froze something I shouldn't have... but a wipe and reinstall should have fixed that. I don't understand why it wouldn't. I've even wiped system.
I'm going to see if I saved a backup somewhere, as it's not on the phone. I can still get into recovery and such, which is good.
Flapjack said:
I'm not sure what happened with my US Axon 7. I was getting it ready to give to my son, and now it won't boot. Even with a full wipe (including system) and reinstall of the OS. It tries to boot, but just sits at the Google animation forever.
Here is basically the steps of what happened during the wipe/install of the unofficial RR Oreo build:
- Wiped everything
- Flashed the B32+B10 bootstack (A2017X_BootStack_B32+B10.zip)
- Flashed the latest (at the time) unofficial RR Oreo build (RR-O-v6.0.0-20180511-axon7-Unofficial.zip)
- Flashed opengapps micro (open_gapps-arm64-8.1-micro-20180512.zip)
- Flashed Magisk 16.0 (Magisk-v16.0.zip)
- Booted up and setup the phone for his google account
- Rebooted multiple times during setup
- Installed TiBu and froze the apps I normally freeze for the kids.... things they don't need
- Rebooted one final time and got stuck on the boot screen
- Re-performed steps above (minus setup... because I still can't get it to boot)
The best I can figure is that I froze something I shouldn't have... but a wipe and reinstall should have fixed that. I don't understand why it wouldn't. I've even wiped system.
I'm going to see if I saved a backup somewhere, as it's not on the phone. I can still get into recovery and such, which is good.
Click to expand...
Click to collapse
Which apps do you freeze? If you froze some Google apps you can just use the pico package and avoid having to use TiBU entirely
You're saying that after doing the whole installation you set up the ROM, but after you freeze apps with titanium and reboot the phone refuses to boot?
Choose an username... said:
Which apps do you freeze? If you froze some Google apps you can just use the pico package and avoid having to use TiBU entirely
Click to expand...
Click to collapse
I don't remember exactly... nothing I haven't frozen on their phones before.
You're saying that after doing the whole installation you set up the ROM, but after you freeze apps with titanium and reboot the phone refuses to boot?
Click to expand...
Click to collapse
It seems to be that way. I had already installed Magisk, but it's not like I installed Xposed or anything "dangerous" to the operation of the phone. The only thing I can think of is I froze something that kept it from booting. But if that's the case, why wouldn't reinstalling the ROM fix it? Wouldn't that fix anything I changed/froze?
Flapjack said:
I don't remember exactly... nothing I haven't frozen on their phones before.
It seems to be that way. I had already installed Magisk, but it's not like I installed Xposed or anything "dangerous" to the operation of the phone. The only thing I can think of is I froze something that kept it from booting. But if that's the case, why wouldn't reinstalling the ROM fix it? Wouldn't that fix anything I changed/froze?
Click to expand...
Click to collapse
well, if you wiped and installed everything again it should work...
Something must have been wrong with the ROM itself. I don't get it, since it worked fine the first install. I installed AOSP instead and it booted right up. I'm going to take a full backup, freeze the things I normally freeze, then see what happens.
I was having a very similar issue while trying to move to exactly the same ROM. My problem was that I was accidentally encrypting the phone (I didn't realize that this is what the "require pin at startup" prompt was doing). If TWRP is asking you to put in a pin number every time you boot into recovery, then your phone is encrypted. RR ROM (or at least the most common version of it) does not support encryption, so it will refuse to boot.
To get rid of encryption, you have to select the "format data" option in the wipe menu. You can't just wipe the usual partitions.
I can't be certain that this is your issue, but hopefully it helps.
beokabatukaba said:
I was having a very similar issue while trying to move to exactly the same ROM. My problem was that I was accidentally encrypting the phone (I didn't realize that this is what the "require pin at startup" prompt was doing). If TWRP is asking you to put in a pin number every time you boot into recovery, then your phone is encrypted. RR ROM (or at least the most common version of it) does not support encryption, so it will refuse to boot.
To get rid of encryption, you have to select the "format data" option in the wipe menu. You can't just wipe the usual partitions.
I can't be certain that this is your issue, but hopefully it helps.
Click to expand...
Click to collapse
Not similar at all. In your case the ROM would boot fine, but it woupd fail to load your data, so it asks for a password that not necessarily exists. In his case the ROM never gets to boot
Choose an username... said:
Not similar at all. In your case the ROM would boot fine, but it woupd fail to load your data, so it asks for a password that not necessarily exists. In his case the ROM never gets to boot
Click to expand...
Click to collapse
You misunderstand. I could only boot RR once, and if I accidentally encrypted the device during setup or afterward, the next time I tried to restart, it would be stuck on the boot screen. All subsequent reinstalls also got stuck on the boot animation since I wasn't removing encryption even if I wiped data, system, cache, etc. Moving to AEX allowed me to boot with encryption, and it was at that point that I realized my mistake. That sounds precisely like what is happening to flapjack, except that the cause may or may not be the same since he got through multiple boots the first time and presumably had already setup a pin/password on one of the first boots.
Immediately after the pin is setup should be when it asks if you want to require the pin on startup (aka if you want to encrypt), so if he opted to do that after setting everything up rather than on the very first boot, he may have exactly the same issue I had.

Bootloop: Upgrading Verizon Note 4 from 5.1.1 w/ root to 6.0.1 w/ root

After attempting to upgrade my wife's Verizon Note 4 from 5.1.1 with root to 6.0.1 with root, it is now in a boot loop. I had done my exact phone earlier this month with no issues, so I was confident I could do hers. Now she's pissed because she has no phone and I'm in the dog house. Fortunately, I made a complete backup of her phone using TWRP before attempting this upgrade.
So, can I just restore her backup or are there other steps I need to perform before trying to revert it, since I did flash the N910VVRU2CQL1_PartialFirmware_DevEd.tar and the N910VVRU2BPA1_N910VVRU2CPD1_FullFirmware.tar during the process, and also the JasmineROM_v7.0_N910VVRU2CPF3, though it was actually restored via TWRP.
The details are below if it helps determine what might have happened, but if I can just restore her backup, she'll be happy, which means I can finally get out of the dog house.
I tried upgrading my wife's phone since she has the same exact phone running 5.1.1 with root. Everything appeared to be going fine, but after performing the last step (flashing the N910VVRU2CQL1_PartialFirmware_DevEd.tar.md5.7z via Odin) and rebooting the phone, it now goes into a boot loop. It will load the Samsung logo for about 20-30 seconds, then reboot every time. I can still access TWRP from recovery and I have cleared Dalvik and Cache, but it still does the same thing. I also reflashed JasmineROM_v7.0_N910VVRU2CPF3, cleared Dalvik and Cache again, but still the same boot loop. It does still show the word Custom under the Samsung logo at boot, so I assume that is good news. Doesn't that mean the bootloader is still unlocked or something?
If it helps, the part of the process that had me concerned was after unlocking the bootloader. I powered off the phone, and then tried to load the recovery menu so I could factory reset the phone and clear the cache, but the recovery menu never appeared. It did show the Android fix-it guy for the recovery for about 10 seconds then a short progress bar under it for about 5 seconds, then it went straight to the Samsung logo. It never did give me the actual recovery menu, just the Android fix-it guy animation, which I thought was odd because I've always had the recovery menu pop up after that.
Any suggestions?
Mike
Modify_inc said:
After attempting to upgrade my wife's Verizon Note 4 from 5.1.1 with root to 6.0.1 with root, it is now in a boot loop. I had done my exact phone earlier this month with no issues, so I was confident I could do hers. Now she's pissed because she has no phone and I'm in the dog house. Fortunately, I made a complete backup of her phone using TWRP before attempting this upgrade.
So, can I just restore her backup or are there other steps I need to perform before trying to revert it, since I did flash the N910VVRU2CQL1_PartialFirmware_DevEd.tar and the N910VVRU2BPA1_N910VVRU2CPD1_FullFirmware.tar during the process, and also the JasmineROM_v7.0_N910VVRU2CPF3, though it was actually restored via TWRP.
Click to expand...
Click to collapse
Not that I'm impatient, but I thought I had a backup phone I could put my sim card in until I resolve this issue. Only problem is I forgot it was an at&t phone. Duh!
From what I've read the Note 4 n910v is a robust and almost unbrickable phone. So I said what the heck, I'm going to restore my backup. I mean that is why before all instructions it is advised to make a full backup, so you can revert back, right!. I don't recall the instructions claiming there is a special process or order of steps to take before you can restore your backup.
So, I wiped everything and restored my full backup via twrp. Upon reboot, I finally had the "Kernel is not seandroid enforcing" and "Set Warranty Bit: Kernel" that I was accustomed to. I thought this must be a good sign, but then it went to a black screen, which I realized after about 20 mins, that it had powered itself off. So I tried it again and same thing, it doesn't reboot or even vibrate or flash the LED light. I can press the power button and it will come back on, so I know it turns itself off. So what would cause it to power off after displaying the first boot logo titled Samsung Galaxy Note 4 Custom w/ unlocked icon powered by Android?
The next thing I will try, unless hopefully someone advises me otherwise, is reflash the N910VVRU2BPA1_N910VVZW2BPA1_VZW [5.1.1 Stock FW]. I assume that should be safe to do, and I'll just follow the directions for the "Easy Guide for How to Root Verizon Galaxy Note 4 (updated links and instructions)" though technically isn't the bootloader already unlocked since I have the red "Kernel is not seandroid enforcing" and the yellow, "Set Warranty Bit: Kernel" and the custom unlocked lock on my boot screen?
This is where I'm confused, I feel like this is not the issue, that it must be something else, but I'm at a lost.
Finally got my phone working! But no WiFi
I've finally got my phone working again! I just can't get the WiFi to work. I have tried three different modems but still the WiFi will not enable: N910VVRU2BPA1_Modem, N910VVRU2CPD1_Modem, and N910VVRU2CPF3_Modem. I even tried restoring the modem I had backed up, but still no go. I noticed that even when I restored my modem from backup, it still said my baseband was N910VVRU2CQL1, but when I flashed the other modems, they each updated the baseband correctly, displaying the correct baseband version, though still no WiFi.
Any suggestions?

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