Develop Bugs

[Q] Question about flashing rom

Hello, i'm a fresh man on my P936.
I got some trouble on flashing roms except of stock rom (full rom).
In my case, I can:
1. Access to CWM
2. Flash stock rom, stock-modificatied rom or full rom successfully
However, I failed in
1. flashing other roms likes PAC-man rom, ChaOS and etc third party rom. After I flashing those rom, and reboot my phone. The screen did not show anything, dark screen with LCD background light.:crying:
I have follow those inspections and tried many times.
Does any users have those experience before? And how can I solve it?
Thanks a lot:angel:

before you flash a non stock rom you need to wipe data, cache, dalvik, wipe battery stats (optional)
also do a nandroid backup before you wipe incase the new rom doesn't work for whatever reason, i had a problem flashing pacrom though too btw, it might just be the rom. you can try an older version or something too

If you're coming from another ROM It is recommended that you first do backup then FULL wipe then flash ROM

kidcalcium said:
If you're coming from another ROM It is recommended that you first do backup then FULL wipe then flash ROM
Click to expand...
Click to collapse
that's what he said ^^

OGPunc said:
that's what he said ^^
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Click to collapse
I did it, but fail to install PAC ram.
I tried
1. FULL Wipe -> install .zip reboot
2. FULL Wipe -> install .zip reboot -> FULL Wipe
but all the results are fail

ki1233 said:
I did it, but fail to install PAC ram.
I tried
1. FULL Wipe -> install .zip reboot
2. FULL Wipe -> install .zip reboot -> FULL Wipe
but all the results are fail
Click to expand...
Click to collapse
Which PAC are you flashing? Some recent nightless do not boot.
Try CM10.1RC5

mpsantiago said:
Which PAC are you flashing? Some recent nightless do not boot.
Try CM10.1RC5
Click to expand...
Click to collapse
The RC ver is OK, but the latest version (17-6-2013) cannot boost.

ki1233 said:
The RC ver is OK, but the latest version (17-6-2013) cannot boost.
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Click to collapse
Yeah its a bug. Try flashing Wind 2.3 immediately after flashing CM (or PAC) and gapps, with no reboots between.

mpsantiago said:
Yeah its a bug. Try flashing Wind 2.3 immediately after flashing CM (or PAC) and gapps, with no reboots between.
Click to expand...
Click to collapse
:victory:
thanks a lot

Thanks, this helped me too.

[Q] how to install another rom with kernel?

hi
thanks to this forum i installed CM11 on my phone and it's all good, but i heard recommendations about CM9 with hurtsky's kernel and i want to install it now.
i already downloaded the CM9 rom, gapps and kernel. my phone now has CM11 (installed with CWM).
i need step by step instructions how to change to the CM9+kernel i downloaded... hope you help me guys thanks alot :laugh:

open recovery mode
wipe data
wipe cache
format system
install rom
install gapp if needed
to install kernel also same way..
enjoy...

purnama_durja said:
open recovery mode
wipe data
wipe cache
format system
install rom
install gapp if needed
to install kernel also same way..
enjoy...
Click to expand...
Click to collapse
format system = mounts and storage----> format /system ?
and when i want to install kernel, if i wipe and format again, the rom will not be deleted?

lightmess5 said:
hi
thanks to this forum i installed CM11 on my phone and it's all good, but i heard recommendations about CM9 with hurtsky's kernel and i want to install it now.
i already downloaded the CM9 rom, gapps and kernel. my phone now has CM11 (installed with CWM).
i need step by step instructions how to change to the CM9+kernel i downloaded... hope you help me guys thanks alot :laugh:
Click to expand...
Click to collapse
Do a clean installation:
I assumed that you already saved cm9 rom and cm9 gapps in your external sd-card so, boot into recovery mode then,
select "wipe data / factory reset"
go to "mounts & storage" and format /system.
under the same menu, format /sdcard (be careful NOT to format /external_sd by mistake)
install cm9 rom
install cm9 gapps
reboot your phone

[Q] Re-root after omni lollipop install

I can't seem to get root now that I've installed Omni lollipop 5.0.2 for my ls 970. Free gee will not boot on both fresh install of rom and app. I tried rooting with newest philz touch in recovery. Also, no dice. Tried towelroot and framaroot hoping something would work...nothing. I had cm12 unofficial running and it had root somehow. Is there any way to re-root with Omni? Is it just a matter of changing kernels? Thanks in advance.

thejase said:
I can't seem to get root now that I've installed Omni lollipop 5.0.2 for my ls 970. Free gee will not boot on both fresh install of rom and app. I tried rooting with newest philz touch in recovery. Also, no dice. Tried towelroot and framaroot hoping something would work...nothing. I had cm12 unofficial running and it had root somehow. Is there any way to re-root with Omni? Is it just a matter of changing kernels? Thanks in advance.
Click to expand...
Click to collapse
I have root, no problem. Did you wipe everything before install? Wipe data, system, cache, dalvik cache. I am using the multi boot TWRP and have installed omni as primary (the same as any other recovery would be) and have no problems. I beleive root is built in. If you have problems, try flashing superSU from recovery. I have used 2.42 and 2.44 but there may be a newer one now...
here is 2.42. Follow the link, download the zip. Flash in recovery, wipe caches after install.
http://forum.xda-developers.com/apps/supersu/2014-09-02-supersu-v2-05-t2868133

dopy25 said:
I have root, no problem. Did you wipe everything before install? Wipe data, system, cache, dalvik cache. I am using the multi boot TWRP and have installed omni as primary (the same as any other recovery would be) and have no problems. I beleive root is built in. If you have problems, try flashing superSU from recovery. I have used 2.42 and 2.44 but there may be a newer one now...
here is 2.42. Follow the link, download the zip. Flash in recovery, wipe caches after install.
http://forum.xda-developers.com/apps/supersu/2014-09-02-supersu-v2-05-t2868133
Click to expand...
Click to collapse
Thank you. The built in one didn't work but the newest beta is perfect!
Sent from my LGOG with much love to the xda community!

CM13 not booting

After flashing TWRP with Odin, I boot into recovery and wipe the dalvik cache. I then go to install the CM13 zip file, and it works. I wipe Dalvik again and reboot in the os. This is where it just shows the CM boot screen infinitely. Nothing else. What is up. I am using the latest TWRP and CM13 release.

Try this:
1. Wipe cache, dalvic cache, data, system
2. Install CM13 again, along with your gapps(google apps if you didn't know, custom ROMs never come with them, optional)
3. Boot it, it should work
You cannot switch ROMs without wiping data. Bad things happen.
You must clean flash when:
1. Switching between a stock ROM to a custom ROM
2. Downgrading Android versions (5.1 to 5.0)
3. Switching custom ROMs (I.E. CM13 to AICP)
4. When the ROM's thread warns to (switching keys)
5. Switching between nightly builds and stable.
When you're updating nightlies, you shouldn't have to though.

RDChase said:
Try this:
1. Wipe cache, dalvic cache, data, system
2. Install CM13 again, along with your gapps(google apps if you didn't know, custom ROMs never come with them, optional)
3. Boot it, it should work
You cannot switch ROMs without wiping data. Bad things happen.
You must clean flash when:
1. Switching between a stock ROM to a custom ROM
2. Downgrading Android versions (5.1 to 5.0)
3. Switching custom ROMs (I.E. CM13 to AICP)
4. When the ROM's thread warns to (switching keys)
5. Switching between nightly builds and stable.
When you're updating nightlies, you shouldn't have to though.
Click to expand...
Click to collapse
Just did it, it still seems to be booting like it previously was. Wiped cache, dalvic, data, and system and then installed CM13 and gapps. Still booting as I write this.

Since that failed, check your download, make sure nothings bad. If its bad, redownload, if not, idk.
If you post your recovery logs, or what the console says, that will help me figure out what's going on.
Also, is your phone the triband model (l710t)?
Are you flashing anything else at the same time?
The more info you give, the better.

RDChase said:
Since that failed, check your download, make sure nothings bad. If its bad, redownload, if not, idk.
If you post your recovery logs, or what the console says, that will help me figure out what's going on.
Also, is your phone the triband model (l710t)?
Are you flashing anything else at the same time?
The more info you give, the better.
Click to expand...
Click to collapse
I've kind of given up at this point. Even CM12 doesn't work. The only thing that seems to work is the stock rom. My phone is the regular SPH-L710 model. I didn't even know the L710t was a thing.

I have the same problem, and sometimes it boot in the system setup mode, but the sensor is not working, i can turn on airplane mode, reboot or power off, and sensor works, what happend i dont know((

ovil101 said:
After flashing TWRP with Odin, I boot into recovery and wipe the dalvik cache. I then go to install the CM13 zip file, and it works. I wipe Dalvik again and reboot in the os. This is where it just shows the CM boot screen infinitely. Nothing else. What is up. I am using the latest TWRP and CM13 release.
Click to expand...
Click to collapse
http://forum.xda-developers.com/showthread.php?t=2755793
helped)))

1vankill1 said:
http://forum.xda-developers.com/showthread.php?t=2755793
helped)))
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Click to collapse
That just seems to be a stock rom.

yes it stock rom, after it was installed, I was able to install 13 cm

Need help to install custom rom

Hello,
I don't know why my lg g3 phone doesn't want boot on custom rom.
I have the LG G3 d855 model, 16gb memory and here are my procedure to install every custom rom :
1. Flash Stock ROM using LGUP (the version of the firmware is not important but the possibility to root is)
2. Install KingRoot and get root
3. Install AutoREC and enter to the recovery
8. Flash Recovery TWRP 3.1.0-2
9. Reboot to the new recovery
10. ADVANCED WIPE (wipe cache, dalvik cache, data and SYSTEM)
11. Flash baseband 21C
12. Flash CUSTOM rom
13. Wipe cache and dalvik cache
14. Flash Gapp
15. Wipe cache and dalvik cache
16. Reboot
I think I did nothing bad...
but the phone does not start and it stays at the initial logo screen (not the LG logo, but the custom rom logo). I waited over 10 minutes to boot but nothing. Even though I install the identical rom again or install an anoter rom, each time the same issue.
This happens with all custom rom (xenonhd, resurrection remix, and now lineageOS)
I can use and boot on stock rom but each time I want to install a custom rom, my phone doesn't want to boot. The phone display stays at the initial rom logo screen.
It seems that I am alone to have this problem.
I don't know why and I search everywhere to find out the solution...
PS : My phone never restart by itself. I never have bootloop with my phone when I using stock rom and same with custom rom..
The problem is the boot with a custom rom. The phone don't want to boot and stay on logo loading...
Any suggestion may be help.
Thank you.

1. Once you installed TWRP you don't have to go back to stock to switch roms. From then on you can just download zips and flash them.
2. You need to delete everything (including system) except internal and external storage ( so you can still flash the zip for xceed, otherwise you will delete it). Remember that you will lose all your apps including your data with it. You can backup them with titanium backup tho. Pictures and video's will still be there as they are stored on the internal or external storage.
3. You also need to flash the GAPPS package after flashing rom, for xceed (7.1.1), pick nano (ARM)
4. Wipe cache and dalvik after flashing and reboot.
5. Make a backup before you do so !!!!!!
Good luck.

Jornwitt said:
1. Once you installed TWRP you don't have to go back to stock to switch roms. From then on you can just download zips and flash them.
2. You need to delete everything (including system) except internal and external storage ( so you can still flash the zip for xceed, otherwise you will delete it). Remember that you will lose all your apps including your data with it. You can backup them with titanium backup tho. Pictures and video's will still be there as they are stored on the internal or external storage.
3. You also need to flash the GAPPS package after flashing rom, for xceed (7.1.1), pick nano (ARM)
4. Wipe cache and dalvik after flashing and reboot.
5. Make a backup before you do so !!!!!!
Good luck.
Click to expand...
Click to collapse
Hello,
1. I think that but with specific rom, some people tell us to flash stock rom before flashing a custom rom. eMMC bug related ?
2. Deleting the system changes nothing because the system is wiped when I flash the rom, right ?
3. if the rom boot first then I will install Gapps. Else, I don’t install because the rom doesn’t want to boot.

1. Well .. I've been switching between fulmics,xceed,rr, .. etc without any problem so no, there is no need to go back to stock everytime.
2. Try it, you won't be able to boot until you flash a new rom, but it could help. That's why you take a backup in the first place. It is more 'clean' and if you don't try it you won't know.
3. Sometimes you have to flash gapps directly after the rom or you will be in for a bad time if you do afterwards.
Once you have TWRP recovery installed it's the easiest thing ever to flash a new rom. Make sure your zip files are downloaded okay. Download the MD3 to check it. Try to download via MEGA app or so, because browsers downloads tend to have errors sometimes.
Apart from that. Don't root via kingroot. They have had some suspicious cases where malware was installed on the phone when rooting.
If nothing's works. Go back to full stock through KDZ, root wit your PC, install TWRP via autorec, go to recovery, wipe everything, install modem 21C, install rom and gapps, wipe cache, reboot. Don't try anything other than that.

I have the same problem

Jornwitt said:
1. Well .. I've been switching between fulmics,xceed,rr, .. etc without any problem so no, there is no need to go back to stock everytime.
2. Try it, you won't be able to boot until you flash a new rom, but it could help. That's why you take a backup in the first place. It is more 'clean' and if you don't try it you won't know.
3. Sometimes you have to flash gapps directly after the rom or you will be in for a bad time if you do afterwards.
Once you have TWRP recovery installed it's the easiest thing ever to flash a new rom. Make sure your zip files are downloaded okay. Download the MD3 to check it. Try to download via MEGA app or so, because browsers downloads tend to have errors sometimes.
Apart from that. Don't root via kingroot. They have had some suspicious cases where malware was installed on the phone when rooting.
If nothing's works. Go back to full stock through KDZ, root wit your PC, install TWRP via autorec, go to recovery, wipe everything, install modem 21C, install rom and gapps, wipe cache, reboot. Don't try anything other than that.
Click to expand...
Click to collapse
Hello,
I have a question.
Can you give me a gapp 100% compatible with all custom rom with android 7.1.2, because i think opengapp are not reliable. Maybe the gapp will cause my issue and the rom won't boot.
Can i use this one https://forum.xda-developers.com/on...isited-slim-gapps-6-0-7-0-unofficial-t3462088 ?
I always use PICO version of gapp
Thank