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[Youtube] How to use CH341 SPI flash reader and how to easily desolder SPI memory without hot air

p.kaczmarek2 

Here's a short 25VQ16ATIG flash memory reading/writing tutorial with CH341 dongle and Neoprogrammer software. Video also includes desoldering/soldering guide for a memory in SOIC/SOP package. The method shown here can be used for any SPI memory, including BIOS from a computer motherboard, but here we will use an IoT device WiFi module as an example. Keep in mind that similar method can be used to swap SPI memory for a larger one for ESP8266 modules.

Before we begin, I'd also like to note that some of CH341 programmer versions might use 5V voltage levels on SPI lines which may not be expected by SPI flash memory chips, so if you want to be on the safe side, consider getting newest CH341 version or doing a 3.3V mod for the older one. We may also cover this topic in a future.

Here's the tutorial:
[youtube]
https://www.youtube.com/watch?v=z9uLPo9QAY8
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Please also remember that there is a possibility of flashing without soldering, CH341 comes with a clips, but in some cases it may not be a reliable approach.

Here's a Github repository with CH341 tools:
https://github.com/YTEC-info/CH341A-Softwares

Thank you for watching. If you have any experience with CH341, let us know. You may also visit our Youtube channel and watch our other IoT-related videos. See you!

About Author
p.kaczmarek2
p.kaczmarek2 wrote 11871 posts with rating 9950 , helped 568 times. Been with us since 2014 year.

Comments

Mateusz_konstruktor 05 Apr 2023 07:55

The matter is even more complicated with systems that require 2.5 or 1.8V, and for some time there are more and more of them even in quite unsophisticated electronic devices. The programmer at first glance... [Read more]

@GUTEK@ 05 Apr 2023 21:53

Recently I had the need to program Flash to 1.8V. Due to the fact that I did not have any programmer that supports this type of memory, I quickly soldered a makeshift one according to this description:... [Read more]

fotisp2 23 Apr 2023 13:44

The best program in my opinion for the CH341 is the Ch341Programmer_v 1.38 https://obrazki.elektroda.pl/4629677800_1682250272_thumb.jpg [Read more]