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I am the original person who posted this problem, after three month of time and effort yesterday I was able to bring back my BT3 to life. In short, you need a lot of patience, a clean work bench, very good eyes that can work with less than a mm measurements and a steady hand plus a good soldering and heat pump station. I ordered the BIOS chip "25LQ64CVIG" a set of 2 for $3, then bounch a BIOS programmer CH341A and download the driver and apps needed to use the USB programmer, removed the large orange heat sink, underneath that I found the BIOS chip, with heat pump removed the chip and soldered it to 8 wires that connected the chip to the programmer, then run the CH341A app erase the chip but first you need to let it automatically select the chip model, if every thing goes well then you get four readings for each parameter to the left of the main App screen "$15 $18 $100" these figures are not exact I just write it from my top of the head. when sure the chip is detected correctly and you can read and write to it first run "BLANK" then open Beelink V11 or V16 BIOS file then use AUTO PROGRAMMING option from the CH341A App and let it run its course. At the end read the newly programmed chip and save the bin file to like "test.bin", exit the App and install a Hex file reader and compare test.bin with the Beelink bin file you used to program it, the report should be " both files are exactly the same. Now you are sure that you have good chip in your hands, Use a lot of patience clean the board with alcohol and accurately put in place the chip on 8 contacts where you removed it from but be sure to document on a piece of paper chip pin number 1, which has dot index (you need a magnifying glass to see this dot), after soldering use an eye piece magnifying glass and inspect your soldering job to be sure that the pins are joined and not connected to each other. This is the most important part of the job and requires a lot of patience, do hurry to connect power take your time. The last important step is to remember that through all this process BIOS battery should be disconnected and after soldering and final cleaning then reconnect the battery and last step is to hold rest and power button several times to force the device to wake up and read from the chip I spent days after soldering the good chip till I was change the blue light to red and then waited about 5 minutes till it return to blue, every thing star to work and my Window 10, 32 bit shines. One other thing to remember is if original windows on the motherboard is 32 bit you should program the chip with V11, this is a hard lesson i learned because I programmed it with V16 and it would not work, I had to reprogram the chip with V11 till I was able to load windows properly.
Have fun and enjoy |
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Author: Handroid
Post time 2016-07-26 21:13:31
