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I bought 1.8V adapter, it should arrive tomorrow, I will try to read U1950. Unfortunately, I could not found any suitable programmer for U1900. It is Macronix MX25S6473F with Vcc 1.14V-1.6V. Do you know any programmer that works with 1.2V SPI ROM ICs? According to RT809H documentation, it does...

Thank you. BTW, about U1950 IC (SEC_EEPROM), I stumbled upon such information: https://academy.chinafix.tech/wechat/course/details/video?goods_sn=SP101315&course_mode=1&uname=undefined (around 5:45). They say SEC_EEPROM IC is bound to the M1 SoC. If that’s true, no wonder, I got worse results...

Yeah, I’ve read on that article that touchpad may be needed for some boards. Yet, I tested another A2681 board w/o touchpad and it did not fail like this. So, my assumption is the case is not in touchpad. The machine appears in DFU, not Recovery. I tried using different cables. What about...

Thank you! I've read this article about DFU mode, it is very thorough and useful! Writing it took a lot of effort! Can you suggest the programmer model that can be used to flash U1900, U1950? All I have is CH341 model. I should mention that I tried to replace U1950 from donor board, but had no...

Hello everyone! Glad to be a part of repair community. Hope to get some help. I got a MacBook Air M2 (A2681), which I personally bought for repair. I spent some time trying to repair this laptop, so I will try to describe it in details. Laptop sustained heavy corrosion of touchpad and battery...