Flashing AB350 itx/ac bios with ch341a programmer
Printed From: ASRock.com
Category: Technical Support
Forum Name: AMD Motherboards
Forum Description: Question about ASRock AMD motherboards
URL: https://forum.asrock.com/forum_posts.asp?TID=8599
Printed Date: 19 Jul 2025 at 7:35am
Software Version: Web Wiz Forums 12.04 - http://www.webwizforums.com
Topic: Flashing AB350 itx/ac bios with ch341a programmer
Posted By: maktama
Subject: Flashing AB350 itx/ac bios with ch341a programmer
Date Posted: 04 May 2018 at 7:47pm
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Hi, i have Fatal1ty AB350 Gaming-ITX/ac motherboard with ryzen5 1600. Last february, i did bios update from 3.10 to 3.60 and then 4.40, and black screen on constant reboot welcome me when restarted. And i don't have a warranty for this motherboard(it was test/editorial sample which i bought from someone in my country) i searched the forums and saw lots of people had this problem with bios. So i want to flash bios on myself, and bought aprogrammer from aliexpress, and 1.8v converter. i finally could flash the rom to the AB350 Gaming-ITX/ac bios chip Macronix MX25U12873F (relatively new chip, and easily removable because it's socketed),with the SkyGz's software CH341A programmer v1.31(not quite that, i'm going to explain in a moment). MX25U12873F chip is 1.8V, 16MB/128MBit. Actually Ch341A Programmer v1.31 is paid version but also which happen to came with free program also (namely CH341AFree v1.4) in the package that has less userfriendly properties; just have 3 choices -24EEPROM, -25SPI/FLASH and -chip size/speed( like 1MB/8MBit to 16MB/128MBit). i used virtual WinXP working on vmware, CH341A MinProgrammer hardware(aliexpress product , "CH341A Programment" and " CH341A Pro" writes on blackpcb), 1.8v adapter(green pcb, from also aliexpress ) and soc8 test clip(thak you aliexpress : ) ) to hold the chip easily. Total cost is 6-7$. The SkyGz's "Ch341 Programmer" v1.29 and v1.30 didn't write properly i presume, because couldn't verify(exit in half with error) the chip which was written by itself. In v1.31 free version, just selected "25 SPI FLASH" and "16MB/128MBit" choices, can erase the chip and writes the rom perfectly, then verified. Also could read the rom in chip which completely same with the original rom. And my computer works now. So, in the end you don't need for new chip when bios went corrupt, just have to rewrite it.
------------- Asrock Fatal1ty AB350 Gaming-ITXac Ryzen5 1600, ASUS GeForce GTX1060 DUAL OC 3GB, Samsung 500GB 850 EVO M.2 SSD, |
Replies:
Posted By: JohnM
Date Posted: 04 May 2018 at 11:54pm
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Good to hear that you found a solution. The socketed ROM is a nice feature. I've found ASRock Europe tech support very helpful in the past as they sent me a replacement ROM programmed with the BIOS I needed. You just have to ask them nicely! It's much cheaper and simpler than an RMA of the motherboard. ------------- ASRock Fatal1ty AB350 ITX P4.90, AMD Ryzen 5 2400G, 2x8GB Corsair CMK16GX4M2A2666C16, 250GB Samsung 960EVO, 500GB Samsung 850EVO, 4TB WD Blue, Windows 10 Pro 64, Corsair SF450, Cooler Master Elite 110 |
Posted By: chainsaw
Date Posted: 06 May 2018 at 2:26am
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Well done. Not more then it would cost shipping a Mobo for RMA and you have fixed it yourself. ------------- ASRock Fatal1ty X370 Gaming K4 P3.40 AMD RYZEN 7 1700 @ 4Ghz 1.39v Noctua NH-D15 "blocks top 1x pci-e" 16GB GSkill Ripjaw V F4-3200C16D-16GVRB @ 2933 14-15-15-15 T1 1.365v GTX 1080 x2 Sli |
Posted By: maktama
Date Posted: 07 May 2018 at 3:24pm
Actual and bigger plus side is "i have the hardware and knowlege now to fix the bios." So i'm fearlessly update/try new bioses, and if i don't like it ican downgrade previous bios without thrill. No need to send the motherboard for RMA and wait to come back, or request new chip if something happens again. i feel like ihave a superpower
 ------------- Asrock Fatal1ty AB350 Gaming-ITXac Ryzen5 1600, ASUS GeForce GTX1060 DUAL OC 3GB, Samsung 500GB 850 EVO M.2 SSD, |
Posted By: Xaltar
Date Posted: 07 May 2018 at 6:27pm
Awesome feeling isn't it  ------------- 
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Posted By: JohnM
Date Posted: 08 May 2018 at 4:49am
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Hmm... I feel the need to place an order with AliExpress! I have a spare ROM now. ------------- ASRock Fatal1ty AB350 ITX P4.90, AMD Ryzen 5 2400G, 2x8GB Corsair CMK16GX4M2A2666C16, 250GB Samsung 960EVO, 500GB Samsung 850EVO, 4TB WD Blue, Windows 10 Pro 64, Corsair SF450, Cooler Master Elite 110 |