I got the Qin F21 Pro I ordered from Aliexpress. Is it normal for these to come with the bootloader unlocked in “orange state”? For all I know, with the bootloader unlocked this thing could have malware on it. Edit: This post has been made into a full Qin F21 Pro Topic for all related questions, …

Ah ok now I get it. Should of asked you about your other partitions. Any way you think I can make it clearer in the guide? I included boot and dtbo in speaker-fix.zip

@sh7411usa What is the (partial) serial number on your phone? Sorry if you already told me, I’m all over the place.

For clarity sake. when I said earlier that I used the “old dtbo” when making the new kernel twrp boot, I was referring to the dtbo section of the boot partition, NOT to the dtbo partition. these are two separate things. The dtbo file in the boot is a local device map used by the recovery or during a…

Np. Since I flashed custom firmware, my serial shows as 0123456789ABCDEF.

[image] GUIDE - Fix new batch F21 Pro speaker issue The Fix updated kernel - loads new drivers - need to use boot from the new F21 Pro updated dtbo - hardware configuration in kernel - need to use dtbo from the new F21 Pro /vendor/firmware - 3 additions aw87xxx_acf.bin aw87xxx_acf_aw87359.bin …

Nice. You are correct about dtb - my mistake to confuse it initially with dtbo.

[image] GUIDE - Fix new batch F21 Pro speaker issue There are three components required to get the speaker working. New kernel (lives in the boot partition - tells the software how to interact with the hardware) New dtbo partition (the device tree - tells the kernel where the hardware lives) Ne…

@sh7411usa you seem to know what you are doing with this TWRP business. Want to try making out of v3 boot? We have the below but it won’t boot to system. [image] PLEASE HELP With New Version of the Qin F21, Different Hardware and ROM TWRP boot for new version 3 f21 Credits: - @dfrydman Will no…

I don’t have a V3 device, so somebody else is going to have to test it. That being said, lets get this clear. V3 TWRP wont boot to system, but TWRP is working. The stock, obviously, will boot to system, but obviously again, does not have TWRP. You want a hybrid that does boot to system, but also ha…

Qin F21 Pro General Thread

Phones Qin Phones

ars18 December 25, 2025, 4:56am 562

I guess I could clean it up a bit and explain it better. Will put yours in.