KOOBOOK 1Set CH341A 24 25 Series EEPROM Flash BIOS USB Programmer+SOIC8 SOP8 Test Clip+SPI Flash 1.8V Adapter+SOP8 SOIC8 to DIP8 Adapter Socket Converter

Used this to rip off a corrupted bios off my Steamdeck and write a clean backup. The location of the chip is conflicting with the clip so use a small pair of tweezers to pull the clips contact points back if you get a 00:00:00 erase chip time. It should take 00:06:00-00:10:00 and alot longer for programming. Amazing product as I was able to save the original bios off the chip and could verify it was corrupt when compared to the back up. Good stuff!

Make sure you get the green 1.8v stepdown or the one with the selectable voltage. Once I got this item I was able to 1 bring card back into operation and 2 easily flash the ASRock bios to use ASRock's XOC bios updated tool.

I flashed my bios because it lacked nvme modules. I followed the steps over the internet from a person who successfully did a similar mobo. I did a slight revision to the steps and bricked my mobo. This tool saved me from buying a compatible mobo but because my mobo was older and outdated it was more expensive than the newer ones! The new mobos would require a newer CPU, memory, etc. This tool raise my mobo from the dead and with the added nvme modules working! It took several attempts to clip properly to the bios chip. That was the hardest part to get it to work. I did not bother with the 5v vs 3.3v output. I measured the output pins without running the programming software it was outputing 5v but when the chip got detected it was outputing 3.3v. YMMV.

I doubted it would be too good because of its price but it works wonderfully. Honestly I use this to reprogram some of my products and it hasn't failed yet. The clip is great and the programmer came intact, didn't require any resoldering.

I didn’t even get to extract the bios from my computer but as soon as I clamped it and left it on for a bit, it basically bricked my computer and left it unusable, I followed tutorials and everything, yet this little spi flasher killed my computer’s bios chip and i cant access my pc anymore

Used this to backup the bios on the ROG Ally, worked perfectly! I’m sure it has many other uses and I may need it for something else down the road.

This is a 341B chip not a 341A. Not a big difference, but I place a lot of importance on accurate product description. Drivers and software took some time to find, but were available. There is an issue with this board potentially sending the the wrong voltage to the 3.3v signal. There is a modification you can preform to correct this if you begin experiencing problems. I'm greatly disappointed with the test clip that was included. The spring was so strong that it would detach it's self from the chip before and during chip reading. I don't want my review to be completely negative. The primary component of this set does work mostly as described and can help you accomplish reprogramming. However, the supporting hardware is problematic.

I have a IP camera with a SPI flash marked "FM25Q 128A 2144J3G". I programmed it with AsProgrammer using this adapter. It is surely a 3.3v chip, and there is no need to modify this device.