@arnal2 Have you flashed the BIOS executing Winflash.bat? ( AFUWINx64.EXE fp5r06_4xmem_win11_cha.rom /p /b /n /k /x /l /reboot )
Have you cleared the CMOS? with the jumper or by removing the battery?
If nothing works you need to reflash AMIBOOT.rom with the CH341A USB Programmer (it neeeds also the 1.8 adaptor).
Regards
@Chuky :
I only dragged the .rom of the bios to AUWIN exe and the program started by itself and started doing things and reboot, I didn’t try anything else hahaha and clearing the CMOS too, I didn’t try 
But by the way, I ordered yesterday in Amazon the CH341A Programmer with 1.8V adaptor and with your AMIBOOT.rom, I rescued my pc! It was easy! The only thing is that the Chatreey boot screen is gone but idc hahahah
My BIOS chip were different, the W25Q64JW, none of the programs that I see have compatibility with the chip since I encounter NEO PROGRAMMER. I did with that program and all success. I read in other forums that W25Q64FW is the same that JW so in theory, with the CH341A program 1.3 will work.
Edit by Fernando: Unneeded fully quoted post replaced by directly addressing to the author (to save space)
Hi I have an Chatreey AN1 with 8G Ram 256G Nvme SSD, Ryzen 7 2700U.
From the official Chatreey shop in AliExpress they gave me the attached bios update
The bios update did OK but after reboot the pc does not load bios, windows or give display signal and the fan work in high level.
I have unplugged the CMOS battery more than 5 min but I have the same result.
I see in this forum that you "unbrick" the AN1 device with CH341A programmer. Can you give me more details on how to do this and what rom I must flash in the device?
Thank you in advance,
Nikos
AN1- 35.zip (4.69 MB)
@nzgr , what process have you followed to flash the BIOS? Winflash.bat? ( AFUWINx64.EXE fp5r06_4xmem_win11_cha.rom /p /b /n /k /x /l /reboot )
To unbrick the device you must restore your original BIOS using a CH341A programmer with 1.8V adaptor. If you haven´t backup your BIOS you can try with the AMIBOOT.rom file I have uploaded.
@Chuky . thank you very much for your response. As you can see in my upload files I have used AFUWINx64.EXE tb3_cha.rom /p /b /n /k /x /reboot and unfortunately I hadn’t backup my rom.
I’d like to mention that I have ryzen 7 2700U cpu but I have the same bios chip W25Q64JW.
I have ordered the CH341A programmer and I will use AMIBOOT.rom that you have uploaded.
I see that you use neo programmer s/w.
I have seen some videos on the CH341A usage but do you have some tips based on the specific case and taking into account that this will be my first time with bios recovery in that way?
Thanks again.
@nzgr : as you can see in my post https://www.win-raid.com/t9097f2705-Request-FTPM-support-for-AMD-NUC-HC-HCAR-MI-1.html#msg151016 i have followed the standard process.
BTW, you can also try to ask Aliexpress Chatreey shop for your original BIOS. Perhaps they can help you with that.
@Chuky Thanks again I found all this info very helpful. I will try it when I receive the CH341A programmer.
Can you share the updated mn27 bios?
Thanks!
Here is the MN27 Bios:
Sorry for reviving this old topic, but i was wondering: does anyone has still this machine and is aware of any new BIOS updates with a fix for the AMD sinkclose vulnerability? Shouldn’t be available a Picasso-FP5 1.0.1.2 somewhere?
I contacted Minisforum Support and they provided an updated BIOS at this link, that should also work with t-bao mini pc for the one willing to try it.
https://minisforum.mediafire.com/file_premium/dtzzdv4o5hsy3ad/UM700_UM350_UM320_UM340_%25E5%258D%2595%25E7%25BD%2591%25E5%258F%25A3.rar/file
Ciao to everybody
need your help for my similar situation
I have this MINIPC with this settings.
The installed MB is the same here in the post described, but the AMI Bios have a different CODE.
Do you thing i can flash the BIOS to install Windows 11?
Thansk in advance for your precious support
Luigi
Is this file still available?
I have tbao nm27 and cannot find any compatible bios rom anywhere
Hello, this is what I have, I hope it helps:
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Thank you <3 will try to flash it as soon as im home
Hello AluM. I do not understand. I successfully flashed a TBAO MN27 with this file. Was it working before? If it is not working, the only thing I can suggest is a CH341A programmer and AsProgrammer software (available on the internet). Removal of the IC from the motherboard is not required with the clamp.
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Are you sure you do not have the MN35? They are physically the same…
Please read this post, it has happened to other people, but there is a solution. It starts with the NM25 but also discusses the NM27. Let me know how it goes:
[TBOOK (TBAO) MN25 Problems and Solutions - Mini Machines / Desktops, Netops and All-In-One - Minimachines.net : TBOOK (TBAO) MN25 problèmes et solutions - #185 par Bastoch - PC de bureau, nettops et All-In-One - Minimachines.net : Le forum
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@ytnhy99
I contacted Minisforum Support and they provided an updated BIOS at this link, that should also work with t-bao mini pc for the one willing to try it.
Thanks for your link. 
I tried on a T-Bao MN35 Mini Pc, it works but you loose access to wifi because on those ones it’s dual Channel. I asked Minisforum if they had a new bios for the DMAF5.
I updated the last Bios I could find from Chatreey, but if we look at the details of the bios it says “T-bao MINI PC”.
I put a new thread with new updated last bios, it is for T-Bao MN35, Chatreey AN1 and Minisforum DMAF5, but read everything because if you look at the Chatreey page, there is another bios for another cpu 2700U AN1 - Chatreey. I even found that some were with 3550U and Vega 9, so it’s again another bios. This is for the 3550H/3750H no dual wifi.