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Question Downgrading firmware

I now have a phone that had 12.5.3 installed from the start.
Is it safe to install the 12.0.4.0 firmware on this phone?

Yes, do it carefully, following all the steps. If it is running stock MiUi also read about Xiaomi's fallback protection or else your phone may get bricked.

i_sagnik said:
Yes, do it carefully, following all the steps. If it is running stock MiUi also read about Xiaomi's fallback protection or else your phone may get bricked.
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I'm going to try downgrading now!
Thanks for letting me know!

Successfully downgraded firmware and installed crdroid!
Thank you so much!

few__ said:
Successfully downgraded firmware and installed crdroid!
Thank you so much!
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You're welcome, my friend!

few__ said:
Successfully downgraded firmware and installed crdroid!
Thank you so much!
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Did you know if I can flash the global version and lock the bootloader having the TR (turkey) version of the mobil?

allianzcred said:
Did you know if I can flash the global version and lock the bootloader having the TR (turkey) version of the mobil?
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I think it will brick the phone

Can you make a tutorial to downgrade the firmware please?

Question Installing stock oxygen os 11 from lineageos recovery lemonade?

Semi rom noob so apologies in advance.
I installed the stagOS Android 12 rom and while it's very good I want to go back to stock oos11. Can anyone point me in the right direction to a guide for going back to stock?
I had to use lineage os recovery lemonade to flash stagOS. Since I already have this recovery can I use this to flash stock oos11? Thanks.

Thread '[FASTBOOT] [ROM] [PC REQUIRED] [OP9] Stock OOS 11.2.2.2AA' https://forum.xda-developers.com/t/fastboot-rom-pc-required-op9-stock-oos-11-2-2-2aa.4275727/

mattie_49 said:
Thread '[FASTBOOT] [ROM] [PC REQUIRED] [OP9] Stock OOS 11.2.2.2AA' https://forum.xda-developers.com/t/fastboot-rom-pc-required-op9-stock-oos-11-2-2-2aa.4275727/
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Unfortunately this hard bricked my device

lukebukowiec said:
Unfortunately this hard bricked my device
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You were asking if there was a fastboot rom for op9. Sorry thought it would help. Never hard bricked if you can reach edl or fastboot!!

mattie_49 said:
You were asking if there was a fastboot rom for op9. Sorry thought it would help. Never hard bricked if you can reach edl or fastboot!!
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No worries man I barely know what I'm doing. I just posted another thread, I can't get EDL to work even. i really f'd up here

OnePlus 8 TMobile to LineageOS

Hi
I'm looking for Easy Tutorial/Guide Convert OnePlus 8
TMobile to LineageOS .
BEST REGARDS

You'll need to unlock your bootloader first, heres a guide for that
Guide to install Lineage

FoxyDrew said:
You'll need to unlock your bootloader first, heres a guide for that
Guide to install Lineage
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Thanks For Your Help.
Now the question is How to install Magisk On LineageOS ?

If you find the information please post it here, so others can benefit. Thanks.

alaminus said:
Thanks For Your Help.
Now the question is How to install Magisk On LineageOS ?
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download magisk.apk, rename it to magisk.zip, go into lineage recovery, adb sideload magisk.zip and thats it.

Question C.20 Custom ROM Issues

I am using an OP 9 (T-mobile version/ LE2117) and need to move to custom rom
But some dev said that it need to be C.63 and above
What I need to do now?

DuongNguyenVN said:
I am using an OP 9 (T-mobile version/ LE2117) and need to move to custom rom
But some dev said that it need to be C.63 and above
What I need to do nits the same compare to global c.63 tmo c 20 has september security patch so no issue u can go ahead if u have unlocked bootloader
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DuongNguyenVN said:
I am using an OP 9 (T-mobile version/ LE2117) and need to move to custom rom
But some dev said that it need to be C.63 an
Click to expand...
Click to collapse
C.20 tmo is same compare to c.63 it has september security patch so no issue u can go ahead if u have unlocked bootloader

rizzmughal said:
C.20 tmo is same compare to c.63 it has september security patch so no issue u can go ahead if u have unlocked bootloader
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thanks for reply

Phoenix47 said:
Atleast search the forum before posting a thread. You can simply sideload C.63 Firmware or convert to global rom easily.
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do I need to flash boot, vendor boot and dtbo?
I can sideload it and every recovery?

Help post

Hi,
recently i flashed custom rom to my j7 (2015). It was working good but a serious issue came. The screen doesn't work, phn stucks, and the screen seems like broken. I flashed stock firmware but still the same problem. After some times phone automatically reboots itself. Please help me with it.

Hello brother, did you flash the official Android 6 ROM?

alisadty said:
Hello brother, did you flash the official Android 6 ROM?
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Yes brother..

#Israfil.shimanto said:
Yes brother..
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Which custom ROM did you install?

alisadty said:
Which custom ROM did you install?
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Havoc os 4.5. Android 11

alisadty said:
Custom ROMs result in black screen
Hi all, I'm new to the device so I'm maybe doing something wrong but I don't think so. I got the device with a terribly cracked, I flashed Pixel Experience (Android 10) as it's what I've had on my Nexus 5x, everything was working fine so I...
forum.xda-developers.com
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Brother, check this thread

alisadty said:
Brother, check this thread
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Okay brother, i will check and will update you.