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  1. #16
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    I have been using this device CH341 for readinng and programming mainly BIOS for PC. I m trying now to read a 5P08C3 eeprom from my ECU to get the file and write it into a donor ECU eeprom. It seems the reading is ok (however I get sometimes different readings). My understanding is that it is possiblr to mod the CH341. M;y intent is to put a switch so that I can give 3,3 or 5 volts. I guess the 5 volt MUST be supplied to the Vcc pin (pin 8) of the chip. Is this correct?
    Last edited by vince59; 22nd December, 2019 at 10:10 PM.

  2. #17
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    Hello, i know this post is old. I modified my programmer like the first post. But everytime i try to read the EEPROM the reading is only "FF FF ...""

  3. #18
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    I was able to read 95320 chips from radio and immo w/o modifying programmer. Used AsProgrammer from here https://github.com/nofeletru/UsbAsp-flash/releases (select correct chip type via IC - Search). I was checking correct pinout with multimeter to see that Ground on programmer's USB and Ground on ECU are the same. I used clip to read chip w/o soldering it out.

  4. The Following 5 Users Say Thank You to hadesinua For This Useful Post:

    antonypaul (5th August, 2023), arthueascii (4th September, 2021), Col19 (19th August, 2020), pantvas (5th August, 2022), zappaf (28th March, 2020)

  5. #19
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    @hadesinua - thanks. With AsProgrammer I read 95640W - Blaupunkt -RCD 300 with soic8 (I modify cheap CH341A eeprom).
    Thanks
    Last edited by zappaf; 28th March, 2020 at 06:31 PM.

  6. #20
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    Default How to use cheap CH341A programmer for read/write 95xxx Eeproms

    Just wanted to say I really appreciate who made this guide I too was able to read some eeproms with this method. For those doing the mod I know this is self explanatory for some but for me wasn’t strait forward, this is how you do the capacitor mod. Also I added a file you can replace in AsProgrammer to get more types of chipsets in the search chiplist.zip

    Adjustments.jpg
    Last edited by ferrarikid; 16th March, 2020 at 06:41 PM.

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  8. #21
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    thanks its work fine...... this a look ...thankyou

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    Col19 (19th August, 2020)

  10. #22
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    Many thanks for the howto, worked a treat to read a st95080. Thanks again.

  11. #23
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    I am trying to get the pin code out of the IPC on a Opel Corsa D. Where the data is on the eeprom M35080
    I have this CH341A board i have used to get the eeprom data out of the ECU and now modded to 5V to read eeprom on IPC.

    I can confirm it also work with eeprom M35080VP - With a homemade adapter cable
    Last edited by Mahave; 23rd June, 2020 at 01:51 PM.

  12. #24
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    Sorry guys a bit late on this post as I just saw it, to make the CH341 programmer read and write 95xxx eeproms you don't need to modify or add anything as everything is provided onboard, just move the jumper and it should read/write fine if it doesn't for some reasons then add two jumpers (one=original jumper and second=another jumper as shown in picture). Check the attached photo and move the jumper or add another to read/write the 95xxx eeproms.

    20180915_182732.jpg
    Last edited by da14u; 10th July, 2020 at 05:38 PM.

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    Adiadi (21st August, 2020), Col19 (4th June, 2021), pantvas (5th August, 2022), r3aperx (16th July, 2020), rottor (4th September, 2020), seal777 (2nd September, 2022), Smitten8r (7th October, 2023)

  14. #25
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    Just adding M95160 and M95080 PDF specs.

    If you have "W", "R" or "S" on end of chip you don't need 5.5V.
    Only M95xxxx without any additional letters requires 4,5 - 5.5 V.
    Attached Files Attached Files

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  16. #26
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    24C32 Fis can be read using this type of adapter? Any guide as how can be done?

  17. #27
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    yes adrianux, 24c32 can be read, no problem. Just take care to connect pin 1 correctly!

  18. #28
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    Here’s a good video explaining it all guys.


    https://youtu.be/hPKckby54uA


    Sent from my iPhone using Tapatalk

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  20. #29
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    I cant get this programmer to work keep getting connection error -1. Any ideas?? Unmodified, trying to read a st95128RT

  21. #30
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    Because the pin 1 is wrong. If you change the connector, you will get device connected.

 

 
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