Unknown baseband, no signal problem - Nexus 5 Q&A, Help & Troubleshooting

Hey! I just downloaded PA 4 by Mysterious.
I unlocked the bootloader of my n5 by command line
I installed twrp by command line.
Relocked my bootloader.
Flashed pa and no signal.
Unknown baseband version.
What's wrong?
I also compiled aosp from sources, following source.android tutorials. No problems while compiling with make otapackage -j5. same problem with signal and baseband version unknown...
With omni ROM, same procedure. All OK. What's wrong?
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jjaacckk94 said:
Hey! I just downloaded PA 4 by Mysterious.
I unlocked the bootloader of my n5 by command line
I installed twrp by command line.
Relocked my bootloader.
Flashed pa and no signal.
Unknown baseband version.
What's wrong?
I also compiled aosp from sources, following source.android tutorials. No problems while compiling with make otapackage -j5. same problem with signal and baseband version unknown...
With omni ROM, same procedure. All OK. What's wrong?
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Possibly a corrupted EFS file, try reflashing the factory image to see if that solves your issue. Good luck bro.

gee2012 said:
Possibly a corrupted EFS file, try reflashing the factory image to see if that solves your issue. Good luck bro.
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I did it. But no success...same problem. But when I flashed the recovery I have to relock my BL or not?
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jjaacckk94 said:
I did it. But no success...same problem. But when I flashed the recovery I have to relock my BL or not?
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Your BL had to be unlocked in order to flash a custom recovery also flashing a factory image requires a unlocked BL if that is what you mean. You might try flashing the latest official CWM recovery and then flash PA again if this solves the issue. Make sure to run `fastboot erase cache` in cmd after you flashed CWM. Only relock the BL for warranty/repair issues bro, for the rest leave it unlocked.

With pa, I still have this problem...
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Do you have a backup of your EFS?

neomorphix said:
Do you have a backup of your EFS?
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If he doesn't and reflashing stock rom doesn't work, what would?

Reflashed stock IMG. With it works all propely but with aospa still no signal
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I'm beginning to think it's a ROM related problem...
Wiped data, cache and dalvik
Flashed AOSPA by @Mysterious-Rom
No signal. Baseband version unknown.
Rebooted into recovery. Wiped data, cache, dalvik. Flashed omnirom, all OK.
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Related

[Q] how to come back to honeycomb?

Hi, I want to come back to honeycomb, I never rooted my tab and never installed custom rom or recovery, I want come back to honeycomb stock without loosing warranty, there is a way to do it?
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Why would you want to do that?
Check the asus support page..
I'm having a lot of problem with ICS, I've done wipe, cold boot ecc but problems persists, and I would like come back
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Try this.
http://support.asus.com/download.aspx?SLanguage=en&m=Eee%20Pad%20Transformer%20TF101&p=20&s=16&os=32&hashedid=gHh4q7I8dvWJzhdV

Downgrade to gingerbread

I've just flashed ics on
my p500 my question is if i want to downgrade to ginger i have just flash a custom ginger or do something else before flash?
Thanks
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daglaz said:
I've just flashed ics on
my p500 my question is if i want to downgrade to ginger i have just flash a custom ginger or do something else before flash?
Thanks
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Boot to Recovery, Wipe ALL, flash your GB Custom ROM, reboot, Flash GB GApps if not included in ROM zip, Enjoy !!!!
PS. Backup your data before wiping all / make a Nandroid backup if you want to come back to the ICS ROM.
Thanks
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daglaz said:
I've just flashed ics on
my p500 my question is if i want to downgrade to ginger i have just flash a custom ginger or do something else before flash?
Thanks
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Click to expand...
Click to collapse
another way you could do it is to flash stock gb with kdz
this is useful if you are sending your phone in for repairs and you don't want lg to see that you have rooted your phone
but otherwise it you could just flash anything. just remember to clear data before you flash
just flash any custom ginger.... any rom like usual... wiping data and cache and other things...

[Q] baked blackbean

Since I can't reply to the thread directly due to my post count, I'm just going to ask it here.
the download link says p51xx, but the actual file says p5110, wondering if its safe to install that on p5100.
bump
It's almost certainly safe to install, but 3G may or may not work.
Posted from my Fascinate using XDA Premium
R: [Q] baked blackbean
I've istalled it (8.0) on my 5100.
Camera don't work and system sound are missed (only hang_out tune)
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Core Bricked (NAND Erase) :(

help i checked nand erase all in odin and my galaxy core stucked on samsung bootloop
help
it is said that factory reset will help but i canot boot in recovery, booting in recovery was also not possible before also
thanks in advance
You can flash rom stock with Odin
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If you can boot to download mode, you can flash stock ROM using odin. Pray, because I think your IMEI will be erased
Sent from my GT-I8260 using XDA Free mobile app
Yes... go on google find your stockrom and flash it via odin
Sent from my GT-I8262
Flash your stock rom via odin. And if still dosen't work.
March towards your nearest Samsung Service Centre.
RISK EVERYTHING
Press Thanks :thumbup: If I Helped
SENIOR MEMBER
NEWBIE DEVELOPER
LEARNING THE ART OF DEVELOPING KERNELS
PHONE : SAMSUNG GT I8262, SAMSUNG GT S5360
pepmat said:
You can flash rom stock with Odin
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MirXas said:
If you can boot to download mode, you can flash stock ROM using odin. Pray, because I think your IMEI will be erased
Sent from my GT-I8260 using XDA Free mobile app
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cahyabudi100 said:
Yes... go on google find your stockrom and flash it via odin
Sent from my GT-I8262
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StariX37 said:
Flash your stock rom via odin. And if still dosen't work.
March towards your nearest Samsung Service Centre.
RISK EVERYTHING
Press Thanks [emoji106] If I Helped
SENIOR MEMBER
NEWBIE DEVELOPER
LEARNING THE ART OF DEVELOPING KERNELS
PHONE : SAMSUNG GT I8262, SAMSUNG GT S5360
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Thanks to all for your help...
How i fixed it is
I flashed stock rom 2 -3 times and then booted to stock recovery with much difficulty . it was the toughest part booting in recovery....
Then i factory reset the phone from stock recovery and wiped cache and
Voilaaaaaaaa phone booted [emoji5][emoji4][emoji4][emoji4][emoji3][emoji2][emoji1][emoji7][emoji41][emoji41][emoji41][emoji41]
Thanxxxoo once again
Sent from my SK17i using Tapatalk
I am happy to signing was helpful! : D
TechExhibeo said:
Thanks to all for your help...
How i fixed it is
I flashed stock rom 2 -3 times and then booted to stock recovery with much difficulty . it was the toughest part booting in recovery....
Then i factory reset the phone from stock recovery and wiped cache and
Voilaaaaaaaa phone booted [emoji5][emoji4][emoji4][emoji4][emoji3][emoji2][emoji1][emoji7][emoji41][emoji41][emoji41][emoji41]
Thanxxxoo once again
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Click to collapse
same method for me and now galaxy core live again [emoji106]
Sent from my SM-G350

Flashing 4.4.4 from 5.1.1

I'm on stock rooted 5.1.1 with locked bootloader and dualrecovery perfectly working. Is it possible to simply perform a full wipe and downgrade to a 4.4.4 kitkat rom just flashing it through recovery?
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Nosterius said:
I'm on stock rooted 5.1.1 with locked bootloader and dualrecovery perfectly working. Is it possible to simply perform a full wipe and downgrade to a 4.4.4 kitkat rom just flashing it through recovery?
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Are you intending to use a pre-rooted kitkat 4.4.4? If so then yes but do a complete wipe, cache. dalvik, data and system first then flash the kitkat rom. Be sure to do a backup first.
Yes, I'd always use a pre-rooted rom. I think I'll do a backup and give it a try, cause the mobile radio bug is bothering me too much lately.
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Nosterius said:
Yes, I'd always use a pre-rooted rom. I think I'll do a backup and give it a try, cause the mobile radio bug is bothering me too much lately.
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I couldn't stand the battery drain either, so I went back to KitKat and couldn't be happier with the performance. My battery life nearly doubled vs lollipop.
Sent from my D5803 using XDA Free mobile app

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