Question Poco F3 unknown baseband - Xiaomi Poco F3 / Xiaomi Mi 11X / Redmi K40

Does anyone know how to fix unknown baseband problem on Poco F3.I use xiaomi.eu 12.5.4 rom,konabess and dfe for nearly one month. My phone suddenly lag and reboot itself. After that, my mobile internet and wifi cannot turn on. It reboot itseld for several time until i charge my phone Already try flash rom via twrp/ofox. Did'nt try flash on miflash because i did't have laptop.

if you had a EFS backup try restoring it

Related

Bricked my phone... :(

Hello there I had just unlocked the bootloader yesterday and flashed an Oreo ROM without updating base bands and now my device doesn't boot up it just shows the bootlogo and turns off again in less than a second it doesn't even charge, good thing is I am able to go to edl mode I guess but then when I tried qfil and mi flash to flash stock rom i m getting the sahara cannot detect com port handle error and the system cannot find the file specified error in mi flash please help its just been a week since I got this phone
Solution
Chin_hebbar said:
Hello there I had just unlocked the bootloader yesterday and flashed an Oreo ROM without updating base bands and now my device doesn't boot up it just shows the bootlogo and turns off again in less than a second it doesn't even charge, good thing is I am able to go to edl mode I guess but then when I tried qfil and mi flash to flash stock rom i m getting the sahara cannot detect com port handle error and the system cannot find the file specified error in mi flash please help its just been a week since I got this phone
Click to expand...
Click to collapse
I've used MiFlash Tool, and the problem was fixed. Sahara Error occurs when you take to much time to flash after booting to EDL, you only have few seconds to flash util the port is closed for writing. QFIL takes around 20 to 25 seconds in caching the files so use MiFlash and It'll flash. Best way to do it is:
1. Install and setup MiFlash for flashing.
2. Open MiFlash and select your Firmware's folder.
3. As soon as you connect the phone refresh miflash and hit flash.
If everything goes well you'll flash will be successful else try again.
I tried doing as fast as a could too on mi flash and it would come up as trying to connect to com4 port something in the status and would eventually come back to same error in the picture.
Chin_hebbar said:
I tried doing as fast as a could too on mi flash and it would come up as trying to connect to com4 port something in the status and would eventually come back to same error in the picture.
Click to expand...
Click to collapse
I need to flash Baseband for Oreo. Please guide me
windows 10 problem
Chin_hebbar said:
Hello there I had just unlocked the bootloader yesterday and flashed an Oreo ROM without updating base bands and now my device doesn't boot up it just shows the bootlogo and turns off again in less than a second it doesn't even charge, good thing is I am able to go to edl mode I guess but then when I tried qfil and mi flash to flash stock rom i m getting the sahara cannot detect com port handle error and the system cannot find the file specified error in mi flash please help its just been a week since I got this phone
Click to expand...
Click to collapse
I face this problem in windows 10.
first uninstall zuk drivers and qfill and disable driver signature enforcement (Google it how to do it) then install zuk drivers and qfill use original cable and your phone will get flashed
Balaji Sriram said:
I need to flash Baseband for Oreo. Please guide me
Click to expand...
Click to collapse
Follow the instruction from this post
https://forum.xda-developers.com/lenovo-zuk-z2/how-to/zuk-z2-baseband-flashing-guide-t3715121
Do not listen to anyone telling you to use miflash, only use qfil otherwise you WILL encounter other issues because qfil is the only way to reach the deeper partitions that mi is unable to... Other issues may range from no volte, calling or signal problems etc its just easier to do it right the first time.

RN8P MIUI12 boot loop

Have problem with RN8P. M rom is miui12.01. Unlocked bootloader and tryed to root it through twrp. when i flashed magisk 20 phone got into bootloop and now restarting non stop on redmi screen. tryed to flash miui 12.03 through flashtool but giving me error, antiroll ceck failed... WHAT TO DOOO, HELPPP
I was on EEA 12.01. Tryed global 12.03 and EEA 12.01 and cant flash any, always error ANTIROLLBACK CHECK FAILED...... HELP Please
GOT it. After few hours of struggle. Only problem was that folder name of rom was too long (over 260 caracters) Shortened it and flashed without problem.... Regards

miflash

i have a note 8T EEA and i update to miui 12
Because batery drain very fast i try downgrade to android 9 miui 11
1-unlock the bootloader
2-flash miui V11.0.3.0.PCXEUXM
I put cable in usb 3.0
After 5minutes the logo fastboot is gone, display turn in black
In miflash connection is lost with phone
https://postimg.cc/yW0TnLJH
i use this tutorial
it was imposible to enter in fastboot again.
I fix the phone in service but they install a global version of firmware
What do you think is was the problems?
i dont think that they just flash the global firmware they changed the motherboard
I had the same problem and fixed it using EDL mode after reading this thread, someone also made a tutorial.

Question Poco f3 keeps looping

Hi,
I got a brand new poco f3, after a month of use it just keeps rebooting at the poco logo, i tried miflashpro(it just stops at 32% and the phone shows 4.99% and reboots again), tried miflash and says bootloader is blocked.
I tried factory reset too but does not work.
I've been trying stock roms and im loosing hope.. any ideas?
Edit: I also cant use miunlock(It says to to go to system but i cant use the device at all).
Rasetsumaru said:
Hi,
I got a brand new poco f3, after a month of use it just keeps rebooting at the poco logo, i tried miflashpro(it just stops at 32% and the phone shows 4.99% and reboots again), tried miflash and says bootloader is blocked.
I tried factory reset too but does not work.
I've been trying stock roms and im loosing hope.. any ideas?
Click to expand...
Click to collapse
Return the phone to the seller.
NOSS8 said:
Return the phone to the seller.
Click to expand...
Click to collapse
I can't since he does not answer and his adress seems like a fake one.
Both of the IMEI numbers seems fine.
I am also suing the company that sold me but i just want this device working because i was so happy that i got it.

flashing wrong ROM

Hi everyone,
I need some help.
yesterday i was running on lineage os on my OP7T and have some proplems with Gapps so i decided to rollback to stock Rom,by accident i installed OP8 ROM and after that my device not able to be turned on but when i connect it to laptop it shows in the device manager.
but i still cant turn it on,open fastboot or boot from msm tool.
anyone face the same proplem?

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