Develop Bugs

[Q]Soft Brick boots to development warning screen

DISCLAIMER: I'm completely lost, so please break things down into bite-size steps or at least expect some follow-up questions on my part. I'm one of those desperate guys who is attempting to just have a working phone tomorrow. Any help will get as many presses of the thank button as I can possible give.
After several hours of plodding and poking and searching I've managed to do some possibly irreparable damage to my htc one v. Whenever I try to boot the phone it starts up with the htc developer red text "development use only" etc etc. I can access the bootloader and recovery thankfully, so I guess there's hope.
I think the source of my troubles is what's addressed by the essential reading at the top of this sub-forum, ie distinguishing between GSM and CDMA. I think (and this is an assumption here) that despite being in the USA on virgin, the fact that I can shove a sd-card in there means it's GSM (correct me if I'm wrong. please). EDIT: It seems that the phone only works with the CDMA version of TWRP, so I guess that might be an indicator.
Info: htc one v, virgin USA, using TWRP 2.3.3.0, attempted to flash Rom using various versions of Paranoid Android
What I've done thus far:
1. Unlocked bootloader
2. Flashed recovery
2.5. Created backup
3. rooted device (I downloaded rootchecker or somesuch app and was able to confirm that I had rooted my device)
4. Wiped cache and dalvik cache (I think that's what it's called).
5. Attempted to do a factory reset (failed).
6. Attempted to flash ROM (failed)
7. Restarted Device (got stuck on dev screen for the first time).
8. Tried recovering using backup created earlier (which just booted me into the dev screen of doom again).
9. Tried partitioning sd card in an attempt to perform a factory reset (wiped everything including backup).
10. Factory Reset failed with a message about not being able to mount /sd-ext.
11. Tried flashing rom again with different version of PA for shiggles (it worked! oh frabjous day!)
12. Rebooted phone only to get stuck on the dev screen again.
Guides I've used/perused/glanced at:
1. http://forum.xda-developers.com/showthread.php?t=2154635
2. http://forum.xda-developers.com/showthread.php?t=1598964
3. http://www.idroidspace.com/jelly-bean-4-2-2-paranoid-android-custom-rom-for-htc-one-v/
4. http://techmell.net/android-tips/ho...paranoid-android-4-1-2-jelly-bean-custom-rom/
5. http://androidlegend.com/upgrade-ht...ing_wp_cron=1369722527.0674550533294677734375
6. http://www.youtube.com/watch?v=a3pof_WSEEI
I've been at this for nigh on 7 hours and all I have to show for it is a phone I can't use. Help.

Let's try this in order: if you are with Virgin Mobile, it is a CDMA. GSM phones take a sim card, both versions accept an sd card for storage.
Everything looks good until:
#5 The failed warning is due to lack of a SD EXT partition on your sd card. If you didn't re-partition it, you will get that failed warning. No big deal as it is wiping everything else correctly.
#6 You also need to wipe system prior to flashing your new rom.
After flash your new rom, you will need to connect to your pc and boot into bootloader. Make sure it says "Fastboot USB" at the top your phone screen. You have to flash the boot.img for the specific rom you are trying to install. See the rom thread for the correct method.
Check your radio and Hboot version in bootloader. If you have the newer radio (xxx.xxx.928) and Hboot (1.57), you are limited on the roms that will actually work. Check the CDMA development thread for roms that specify OTA compatible.
Good luck. If you have any more questions, feel free to ask.

pedantfool said:
DISCLAIMER: I'm completely lost, so please break things down into bite-size steps or at least expect some follow-up questions on my part. I'm one of those desperate guys who is attempting to just have a working phone tomorrow. Any help will get as many presses of the thank button as I can possible give.
After several hours of plodding and poking and searching I've managed to do some possibly irreparable damage to my htc one v. Whenever I try to boot the phone it starts up with the htc developer red text "development use only" etc etc. I can access the bootloader and recovery thankfully, so I guess there's hope.
I think the source of my troubles is what's addressed by the essential reading at the top of this sub-forum, ie distinguishing between GSM and CDMA. I think (and this is an assumption here) that despite being in the USA on virgin, the fact that I can shove a sd-card in there means it's GSM (correct me if I'm wrong. please). EDIT: It seems that the phone only works with the CDMA version of TWRP, so I guess that might be an indicator.
Info: htc one v, virgin USA, using TWRP 2.3.3.0, attempted to flash Rom using various versions of Paranoid Android
What I've done thus far:
1. Unlocked bootloader
2. Flashed recovery
2.5. Created backup
3. rooted device (I downloaded rootchecker or somesuch app and was able to confirm that I had rooted my device)
4. Wiped cache and dalvik cache (I think that's what it's called).
5. Attempted to do a factory reset (failed).
6. Attempted to flash ROM (failed)
7. Restarted Device (got stuck on dev screen for the first time).
8. Tried recovering using backup created earlier (which just booted me into the dev screen of doom again).
9. Tried partitioning sd card in an attempt to perform a factory reset (wiped everything including backup).
10. Factory Reset failed with a message about not being able to mount /sd-ext.
11. Tried flashing rom again with different version of PA for shiggles (it worked! oh frabjous day!)
12. Rebooted phone only to get stuck on the dev screen again.
Guides I've used/perused/glanced at:
1. http://forum.xda-developers.com/showthread.php?t=2154635
2. http://forum.xda-developers.com/showthread.php?t=1598964
3. http://www.idroidspace.com/jelly-bean-4-2-2-paranoid-android-custom-rom-for-htc-one-v/
4. http://techmell.net/android-tips/ho...paranoid-android-4-1-2-jelly-bean-custom-rom/
5. http://androidlegend.com/upgrade-ht...ing_wp_cron=1369722527.0674550533294677734375
6. http://www.youtube.com/watch?v=a3pof_WSEEI
I've been at this for nigh on 7 hours and all I have to show for it is a phone I can't use. Help.
Click to expand...
Click to collapse
Which ROM you have flashed?
Did you install boot.IMG according to your ROM?
Sent from my HTC T320e

If you're restoring "stock" sense 4.0 ROM, you need to flash a kernel that will work with it. Try Titanium-KISS or Stock. The stock one should have been kernel should have been backed up, it's labeled boot.IMG in the backup folder. EDIT: Since you are CDMA, you need to flash this kernel in Fastboot to get it to boot: http://forum.xda-developers.com/showthread.php?t=2024758. Be sure you flashed the CDMA ParanoidAndroid as well, and not the GSM one.

followup
FIRST: Just thought of something that might be very important, I only had a version of android 4.0 installed on my phone. Will that make a difference when installing roms intended for later versions of android? If so, I feel like a huge knuckle-dragging fool.
Update: Was able to install and boot using PACman, but ran into a boot-loop.
But to follow up to your questions:
MameTozhio said:
If you're restoring "stock" sense 4.0 ROM, you need to flash a kernel that will work with it. Try Titanium-KISS or Stock. The stock one should have been kernel should have been backed up, it's labeled boot.IMG in the backup folder. EDIT: Since you are CDMA, you need to flash this kernel in Fastboot to get it to boot: http://forum.xda-developers.com/showthread.php?t=2024758. Be sure you flashed the CDMA ParanoidAndroid as well, and not the GSM one.
Click to expand...
Click to collapse
I'll admit I've had a hard time find a definitive version of PA or really any other Rom. I've tried going through their thread here and downloading one of the "stables" (http://goo.im/devs/gannon5197/paranoid/primoc/stables/). I've also used other unofficial versions of PA (http://forum.xda-developers.com/showthread.php?t=1799372). I'm currently downloading PACman to see if that will make any difference.
[email protected]@ said:
Which ROM you have flashed?
Did you install boot.IMG according to your ROM?
Sent from my HTC T320e
Click to expand...
Click to collapse
I did flash my boot.img using the method explained here:
Copy the kernel image (boot.img file you have extracted from zip file of ROM) to folder in which you have kept your fastboot files.
In the same folder, right click while holding shift button and select ‘Open command window here’.
A command window will appear on your screen. In command window type ‘fastboot flash boot boot.img’ and press enter.
On your screen you will get message ’OKAY/Finished’. You have successfully flashed kernel. Now you can disconnect your phone from computer.
http://androidlegend.com/upgrade-ht...ing_wp_cron=1369722527.0674550533294677734375
riggerman0421 said:
#5 The failed warning is due to lack of a SD EXT partition on your sd card. If you didn't re-partition it, you will get that failed warning. No big deal as it is wiping everything else correctly.
Click to expand...
Click to collapse
I'd like to think I'd partitioned it properly, but I keep getting a "unable to mount sd-ext" or "unable to wipe sd-ext" message when I attempt a factory reset. I've tried formatting the the mini sd and set the file type to FAT32, but to no avail as the errors persist. I know you said not to be too concerned, but I keep failing the system wipe from your next suggestion because of that error.
#6 You also need to wipe system prior to flashing your new rom.
After flash your new rom, you will need to connect to your pc and boot into bootloader. Make sure it says "Fastboot USB" at the top your phone screen. You have to flash the boot.img for the specific rom you are trying to install. See the rom thread for the correct method.
Click to expand...
Click to collapse
Now how important is it that I flash the boot.img after I have flashed the rom? I've been doing it beforehand, but does doing it afterward make a difference?
Check your radio and Hboot version in bootloader. If you have the newer radio (xxx.xxx.928) and Hboot (1.57), you are limited on the roms that will actually work. Check the CDMA development thread for roms that specify OTA compatible.
Click to expand...
Click to collapse
Those both match my radio and bootloader, what does that imply? I'm planning on flashing this rom: http://forum.xda-developers.com/showthread.php?t=1948034
Will that work?

No, it won't. You have the newer updated hboot and radio. That is the source of your boot loops. The only compatible roms at this time are MyOneV, ExtremeSemse, and RhythmicRom. You can also use Cyanprimo, but you'll have flash the boot.img from RhythmicRom.

Now I've downloaded RythmicRom and I'm still stuck in a boot loop. I'm sorry for being a bit thick, but could you link some roms that would be compatible or explain what I need to be looking for?
Version I downloaded: http://forum.xda-developers.com/showthread.php?t=2147407

You'll need to download the 1.2 update, then extract the boot.img from that. The boot.img in the Rom doesn't work with the new update.

So I've been reading up on the issue over here: http://forum.xda-developers.com/showthread.php?t=2018518&page=14
and while I don't claim to understand it all, I believe I get the gist of it.
I also've managed to get RythmicRom working thanks to riggerman. I guess I'll just play the waiting game until someone rolls out a fix or just replace my phone (though that's very much in the long-run).
Once again, thanks to everyone and hopefully this will be the last we see of this mess.

Glad you got it running, and glad I could help.

[Q] Please help! Severe troubles when installing new ROM!

I have a specific problem .. I think in order for anyone to understand it, I have to explain it well.
I was flashing the new LegacyXperia ROM on my Xperia Arc S (http://forum.xda-developers.com/showthread.php?t=2545354) .. before, I had an older version of LegacyXperia already installed, with CM10.2.
Anyhow, I forgot to flash the boot.img! I did everything else as I should and istalled the ROM. Yet now when rebooting the phone from recovery, it only gets to the "LegacyXperia" screen (I don't know how this is officially called .. it's the first screen you see) and not further. Well, if I press the home button when it's starting, I get to recovery mode. .. So I've been trying my best to fix this. This includes:
Currently I have another Arc S device to work with - I have made a backup through recovery on that device (which works perfectly, running a different ROM) and tried to run it on the "broken" device .. recovery said it went well, but when starting the phone, nothing changed.
I've tried installing a different ROM (the one that is also installed on the second device), but again nothing changed.
I've tried wiping pretty much everything but the "dalvik cache" (since I don't know what this particular cache is) and installing the different rom and/or using the backup. Nothing made a difference.
I've even made an attempt on install the forgotten boot.img - I've taken the previously mentioned backup, put the boot.img into it (all that was on the SD card, via my computer, of course), and added the md5 values to the md5 file. Well, my phone was giving me a md5 mismatch, so I tried wiping everything off the md5 file, which seemed to do the trick (this is a useful thing to know!), since I was able to go through with the process of recovering the boot.img through recovery. After I've managed that, I've reinstalled the LegacyXperia ROM as I should have in the beginning. Yet again, nothing changed! the phone still won't start!
I am really desperate and out of ideas. ..the only idea I have left is try to install an older version of legacyxperia (the one I probably had before) .. but since installing a completely different ROM didn't work, I have only little hope..
I was not able to get into fastboot .. I do not know if it's enabled or not, since it was not me who installed the previous ROM on my phone. I know, shame on me ..
I hope I wrote down everything one could need in order to help me. And please do help me, I ran out of ideas and would REALLY hate to loose this phone!

I didn't understand the part of adding MD5 values to the MD5 file, but whatever
I don't really see why the rom wouldn't boot up, unless the kernel just isn't being flashed. (Maybe the previous owner relocked the bootloader?)
Can't you fastboot the kernel?
Also, Dalvik Cache can and actually should be wiped when installing a new rom.

SOLVED
Yeah, I got the feeling the kernel didn't flash, too! .. perhaps the bootloader was re-locked, but I really don't see why one would be doing that..
I was trying to get to the fastboot screen (with all the button-pressing and usb-plugging), but didn't manage that. However, I found a solution! (and god bless the guy who put this up!) I followed this thread [it seems xda-developers won't let me post an outside link .. anyhow, it's a thread on androidgadgematic.com, titled "How To Fix Bricked Sony Xperia Android Phone With Flashtool [ Unbrick ]" from june 17, 2012] and managed to install the stock ROM without much trouble. Now the phone is again running nicely I did, however, have to get a seperate driver package, since the one supplied with the flashtool wouldn't instal - I googled the drivers and used version 1.5 from xda-developers' forum.
GOSH I'm glad this is over

Boot loop and factory image restore

Hi,
I'm writing here as a last hope, after I've tried every possible solution I could find online. Any help here will be very much appreciated.
Couple of days ago I received my fresh Nexus 5X, that I plan to use with Project Fi.
After unlocking the bootloader (with Google Support blessing!) and installing TWRP+SuperSU, I ran into problems, big problems.
Following the Android wizard setup, I connected to the wifi and the phone started downloading an update of ~79Mb.
When rebooted, though, it started TWRP, and it didn't go ahead.
To play safe, I decided to do a factory reset, using the official ROM from Google, replacing also TWRP with the original recovery (I basically did every step in the "flash-all.sh" script).
That didn't work either, and the phone now gets stuck at the boot animation.
I've tried also wiping partitions using both fastboot ("fastboot -w...") and TWRP, but nothing worked.
Another diagnostic symptom.
I've noticed that the recovery (TWRP for sure, the stock one not so much sure) had problems finding the sdcard partition ("unknown volume for path couldn't mount sdcard installation aborted").
Could that be a source of issues?
I thought that it would be possible to do a factory reset, but I'm probably missing something.
At this point, I'm completely lost and I don't know what to do.
Thanks in advance.

Try the flash all script again with latest firmware and let it boot up completely. It will take a while, once booted, flash TWRP and root if you want.

ntropia said:
Hi,
I'm writing here as a last hope, after I've tried every possible solution I could find online. Any help here will be very much appreciated.
Couple of days ago I received my fresh Nexus 5X, that I plan to use with Project Fi.
After unlocking the bootloader (with Google Support blessing!) and installing TWRP+SuperSU, I ran into problems, big problems.
Following the Android wizard setup, I connected to the wifi and the phone started downloading an update of ~79Mb.
When rebooted, though, it started TWRP, and it didn't go ahead.
To play safe, I decided to do a factory reset, using the official ROM from Google, replacing also TWRP with the original recovery (I basically did every step in the "flash-all.sh" script).
That didn't work either, and the phone now gets stuck at the boot animation.
I've tried also wiping partitions using both fastboot ("fastboot -w...") and TWRP, but nothing worked.
Another diagnostic symptom.
I've noticed that the recovery (TWRP for sure, the stock one not so much sure) had problems finding the sdcard partition ("unknown volume for path couldn't mount sdcard installation aborted").
Could that be a source of issues?
I thought that it would be possible to do a factory reset, but I'm probably missing something.
At this point, I'm completely lost and I don't know what to do.
Thanks in advance.
Click to expand...
Click to collapse
I wonder if you need a modified boot.img or kernel since you are rooted .In my experience since Android 5.1.1 you need a custom kernel for root and sometimes a modified boot.img after flashing twrp
Sent from my Nexus 5X using XDA Free mobile app

androidddaaron said:
I wonder if you need a modified boot.img or kernel since you are rooted .In my experience since Android 5.1.1 you need a custom kernel for root and sometimes a modified boot.img after flashing twrp
Sent from my Nexus 5X using XDA Free mobile app
Click to expand...
Click to collapse
That's an interesting perspective, actually.
I didn't know that you needed a special image for rooted devices.
Although, I would imagine that's always possible to 'un-root' it, and honestly I was hoping that 'fastboot flash -w...' would have removed any trace of the root.
Is that the case?
Either way, where could I find these modified images?
Thanks a bunch!

Solved
I found the solution which, as it happens when nothing seems to be wrong, was fairly trivial.
Basically, the scripts provided with the stock ROM from Google has problems, and this last command fails:
Code:
fastboot update image-bullhead-mmb29p.zip
saying that system.img is missing.
To fix that, you have to manually extract the content of the files and proceed to flash manually userdata, system, etc...
The problem is that if you don't flash also vendor.img, you're in trouble, and the device will not boot.
Some of the guides that I've found were suggesting that you need to do it for the Nexus 9, and I didn't notice when other guides were mentioning it.
Once you flash the vendor.img, the boot loop is gone.
I'll put it here, I hope it can be helpful to somebody.
Thanks to androidddaaron and k.s.deviate for the support!
(I've thanked also used the thank button near the posts, but if there's more to do, let me know)
Now, back to mess up the Project Fi SIM...

Nexus 5x major rooting issues, help!

****** Would really appreciate some help here...
I've tried to install quick reboot (zips), magik, (zips) and busybox, on 3.4 0-0 twrp, and it won't work to boot to system, still says on this version it cannot mount the system. I don't have the perma-recovery file as I cannot find it online, and nexus root toolkit doesn't download it in the dispensaries, latest version.
Hope I haven't knacked it, i also have some screenshots but it doesn't matter as I cannot access the system itself, unless i am missing something it should just boot back to system, I don't understand what I am doing wrong, or have done wrong. Got the img and everything with it.
That said, the mount storage issue is the only thing red, or wrong in the flash, everything else worked apparently, said it installed without a hitch. Which was different that with the standard NRT downloaded twrp, with supersu, as that didn't work.
It just goes back to twrp constantly, can't boot. Help. Really wish I just waited for a response here first. Also I don't believe this is a bootloop, as it just goes back to twrp not bootloader or anything else, probably wrong.
I have been using this vid from the start: realizing that wasn't doing it, magik and a new bionic busybox zip eventually did the trick on 3.4 0-0 twrp, but it sitll won't boot to system. It is probably something obvious, I have been on this for hours today and yesterday, no luck.
only thing i can think of is something to do with: fastboot flash recovery twrp-3.2.1-0-fbe-4core-bullhead.img
basically i flashed the latest version, i dunno if it's supported by nexus 5x.
thanks. uh just please say it ain't bricked.

Anyone?!
edit:
hi all, after immense pain, stress and struggle to get the thing to mount, and trying everything suggested online, it eventually just like "soft-bricked" or whatever, like it was just perma-stuck on the google screen and wouldn't boot to system. i am guessing it's because after a mistake it wiped the system.
i have managed to flash it back to stock, everything is there, and/or redownloading. no way am i gonna bother again, like if it ain't broke don't fix it at this point that would be foolish thought it was perma broke. i'm gonna get a profressional to do it or something, or to give me one to one support to try it again. in the meantime i am going to learn more about rooting and the NRT and all the fundamentals of that.
if anyone here has advice about this still, or articles where I can read about it online, where to learn etc. I'd appreciate that as well, thanks.

Cam3333 said:
****** Would really appreciate some help here...
I've tried to install quick reboot (zips), magik, (zips) and busybox, on 3.4 0-0 twrp, and it won't work to boot to system, still says on this version it cannot mount the system. I don't have the perma-recovery file as I cannot find it online, and nexus root toolkit doesn't download it in the dispensaries, latest version.
Hope I haven't knacked it, i also have some screenshots but it doesn't matter as I cannot access the system itself, unless i am missing something it should just boot back to system, I don't understand what I am doing wrong, or have done wrong. Got the img and everything with it.
That said, the mount storage issue is the only thing red, or wrong in the flash, everything else worked apparently, said it installed without a hitch. Which was different that with the standard NRT downloaded twrp, with supersu, as that didn't work.
It just goes back to twrp constantly, can't boot. Help. Really wish I just waited for a response here first. Also I don't believe this is a bootloop, as it just goes back to twrp not bootloader or anything else, probably wrong.
I have been using this vid from the start: realizing that wasn't doing it, magik and a new bionic busybox zip eventually did the trick on 3.4 0-0 twrp, but it sitll won't boot to system. It is probably something obvious, I have been on this for hours today and yesterday, no luck.
only thing i can think of is something to do with: fastboot flash recovery twrp-3.2.1-0-fbe-4core-bullhead.img
basically i flashed the latest version, i dunno if it's supported by nexus 5x.
thanks. uh just please say it ain't bricked.
Click to expand...
Click to collapse
issues such as what youve experienced are usually caused by version mismatches. I dont have this device and am unfamiliar with the root process for it, but it shouldnt be too different from any other phone. what is the baseband version of your actual phone?

look at this specific reply in this thread
GUIDE - Fix bootloop with locked bootloader via ADB/Fastboot (Android M, N, O)
Hi, Here is fix for those, who have problem with bootloop on 5X with locked bootloader and OEM unlock disabled. This tutorial works for Beta Android O bootloop too. You will need: ADB + drivers installed...
forum.xda-developers.com

Re-Root? Possible partition messup, Lost root now stuck in fastboot

Hello, Sorry to bug you guys...I read multiple different fourms/how2s and I guess I'm a little mixed at what i should do. I Have the oneplus 7t (hd1505) with android 11 rooted, and after that I installed NikGapps after I had it rooted, then flashed nethunter. Was in the terminal as root, all was well..I believe It rebooted and would'nt boot to rom so i went and re'did magisk, may have used a different patched magisk? but now is stuck fastboot. Cant get it to boot.
Sorry for the maybes but I had brain surgry and my memories not the best. Everything was going fine so I didn't document things like normal. Anyways, Is there a program that helps with thiss? MSM somthing? or could anyone please point me in to a nice how2 or some quality links to assist? I really apprricate it, normally I'd just test till I get it, but I think I may be at a point where I could really mess it up.

5k1tz0 said:
Hello, Sorry to bug you guys...I read multiple different fourms/how2s and I guess I'm a little mixed at what i should do. I Have the oneplus 7t (hd1505) with android 11 rooted, and after that I installed NikGapps after I had it rooted, then flashed nethunter. Was in the terminal as root, all was well..I believe It rebooted and would'nt boot to rom so i went and re'did magisk, may have used a different patched magisk? but now is stuck fastboot. Cant get it to boot.
Sorry for the maybes but I had brain surgry and my memories not the best. Everything was going fine so I didn't document things like normal. Anyways, Is there a program that helps with thiss? MSM somthing? or could anyone please point me in to a nice how2 or some quality links to assist? I really apprricate it, normally I'd just test till I get it, but I think I may be at a point where I could really mess it up.
Click to expand...
Click to collapse
If you don't care about data then use msm tools to factory restore. Or you can flash boot image of the rom you were using (unpatched) in fastboot mode itself.

No need to keep data, I'd prefer to wipe device and start fresh instead of getting stuck on the concept of A/B partitions. I get the CMD getvar, but I'm not sure if i flashed the lineage OS to one or both...at 1 point i think i was booted in A, now its saying B. I got overeager and downloaded multiple ROMs and not sure which one worked. In the past I usually downloaded a few and the first one to work I used. Not smart...I know. If I wanted to wipe all and start fresh with gaspps and root, where/how should I do that? I can't just fasatboot oem unlock , could I? Would you recommend stock OS? Lineage? Thanks for your help BTW.

5k1tz0 said:
No need to keep data, I'd prefer to wipe device and start fresh instead of getting stuck on the concept of A/B partitions. I get the CMD getvar, but I'm not sure if i flashed the lineage OS to one or both...at 1 point i think i was booted in A, now its saying B. I got overeager and downloaded multiple ROMs and not sure which one worked. In the past I usually downloaded a few and the first one to work I used. Not smart...I know. If I wanted to wipe all and start fresh with gaspps and root, where/how should I do that? I can't just fasatboot oem unlock , could I? Would you recommend stock OS? Lineage? Thanks for your help BTW.
Click to expand...
Click to collapse
Go to this thread for MSM Tool download and instructions: Unbrick tool to restore your device to OxygenOS