So, my LG 31MU97-B has developed this problem again. I wonder if it is possible in this old thread to establish clearly the procedure to fix the most probable cause.
So, it’s the IC205 on the mainboard – quite easily found (once you can get to the mainboard – I’ve a spare one, of course). This chip is an MX25L8006EM2I-12G.
I plug the programmer into a USB port and correctly connect the clip (connected to the programmer) to the EEPROM IC205 and issue on my Linux computer command line:
having downloaded lg31mu97.bin from the link given in the WordPress blog:
http://aleksikoski.com/temp/lg31mu97.bin
Actually, I’m not too sure you’d be too advised to do this straight out. The CH341A would supply the EEPROM chip IC205 with the required supply voltage of 3.3V. However, the CH341A appears to operate at 5V and supply programming signals at around that voltage to the chip it is programming. '''++It may therefore damage the chip we are trying to reprogram and other devices on the mainboard.++ '''Apparently, it’s possible to make the CH341A use the 3.3V supply at which it will still run. This solution involves wire and solder.
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Got mine fixed again. Pete of Pete’s Computers (Manchester, UK) reprogrammed the IC205 chip for me.
So, my LG 31MU97-B has developed this problem again. I wonder if it is possible in this old thread to establish clearly the procedure to fix the most probable cause.
So, it’s the IC205 on the mainboard – quite easily found (once you can get to the mainboard – I’ve a spare one, of course). This chip is an MX25L8006EM2I-12G.
I plug the programmer into a USB port and correctly connect the clip (connected to the programmer) to the EEPROM IC205 and issue on my Linux computer command line:
having downloaded lg31mu97.bin from the link given in the WordPress blog:
http://aleksikoski.com/temp/lg31mu97.bin
Actually, I’m not too sure you’d be too advised to do this straight out. The CH341A would supply the EEPROM chip IC205 with the required supply voltage of 3.3V. However, the CH341A appears to operate at 5V and supply programming signals at around that voltage to the chip it is programming. '''++It may therefore damage the chip we are trying to reprogram and other devices on the mainboard.++ '''Apparently, it’s possible to make the CH341A use the 3.3V supply at which it will still run. This solution involves wire and solder.
-
Comments and advice on the right SPI programmer and clip to buy very welcome.
So, my LG 31MU97-B has developed this problem again. I wonder if it is possible in this old thread to establish clearly the procedure to fix the most probable cause.
So, it’s the IC205 on the mainboard – quite easily found (once you can get to the mainboard – I’ve a spare one, of course). This chip is an MX25L8006EM2I-12G.
So, I’ve bought an SPI Programmer with an SOC8 clip. I plug the programmer into a USB port and correctly connect the clip (connected to the programmer) to the EEPROM IC205 and issue on my Linux computer command line:
+
I plug the programmer into a USB port and correctly connect the clip (connected to the programmer) to the EEPROM IC205 and issue on my Linux computer command line:
having downloaded lg31mu97.bin from the link given in the WordPress blog:
http://aleksikoski.com/temp/lg31mu97.bin
Actually, I’m not too sure you’d be too advised to do this straight out. The CH341A would supply the EEPROM chip IC205 with the required supply voltage of 3.3V. However, the CH341A appears to operate at 5V and supply programming signals at around that voltage to the chip it is programming. '''++It may therefore damage the chip we are trying to reprogram and other devices on the mainboard.++ '''Apparently, it’s possible to make the CH341A use the 3.3V supply at which it will still run. This solution involves wire and solder.
Comments and advice on the right SPI programmer and clip to buy very welcome.
So, my LG 31MU97-B has developed this problem again. I wonder if it is possible in this old thread to establish clearly the procedure to fix the most probable cause.
-
So, it’s the IC205 on the mainboard – quite easily found (once you can get to the mainboard – I’ve a spare one, of course)
+
So, it’s the IC205 on the mainboard – quite easily found (once you can get to the mainboard – I’ve a spare one, of course). This chip is an MX25L8006EM2I-12G.
So, I’ve bought an SPI Programmer with an SOC8 clip. I plug the programmer into a USB port and correctly connect the clip (connected to the programmer) to the EEPROM IC205 and issue on my Linux computer command line:
having downloaded lg31mu97.bin from the link given in the WordPress blog:
http://aleksikoski.com/temp/lg31mu97.bin
Actually, I’m not too sure you’d be too advised to do this straight out. The CH341A would supply the EEPROM chip IC205 with the required supply voltage of 3.3V. However, the CH341A appears to operate at 5V and supply programming signals at around that voltage to the chip it is programming. '''++It may therefore damage the chip we are trying to reprogram and other devices on the mainboard.++ '''Apparently, it’s possible to make the CH341A use the 3.3V supply at which it will still run. This solution involves wire and solder.
Comments and advice on the right SPI programmer and clip to buy very welcome.
So, my LG 31MU97-B has developed this problem again. I wonder if it is possible in this old thread to establish clearly the procedure to fix the most probable cause.
So, it’s the IC205 on the mainboard – quite easily found (once you can get to the mainboard – I’ve a spare one, of course)
So, I’ve bought an SPI Programmer with a SOC8 clip. I plug the programmer into a USB port and correctly connect the clip (connected to the programmer) to the EEPROM IC205 and issue on my Linux computer command line:
+
So, I’ve bought an SPI Programmer with an SOC8 clip. I plug the programmer into a USB port and correctly connect the clip (connected to the programmer) to the EEPROM IC205 and issue on my Linux computer command line:
having downloaded lg31mu97.bin from the link given in the WordPress blog:
http://aleksikoski.com/temp/lg31mu97.bin
Actually, I’m not too sure you’d be too advised to do this straight out. The CH341A would supply the EEPROM chip IC205 with the required supply voltage of 3.3V. However, the CH341A appears to operate at 5V and supply programming signals at around that voltage to the chip it is programming. '''++It may therefore damage the chip we are trying to reprogram and other devices on the mainboard.++ '''Apparently, it’s possible to make the CH341A use the 3.3V supply at which it will still run. This solution involves wire and solder.
Comments and advice on the right SPI programmer and clip to buy very welcome.
So, my LG 31MU97-B has developed this problem again. I wonder if it is possible in this old thread to establish clearly the procedure to fix the most probable cause.
So, it’s the IC205 on the mainboard – quite easily found (once you can get to the mainboard – I’ve a spare one, of course)
So, say I’ve bought the right SPI Programmer with the right clip. I plug the programmer into a USB port and correctly connect the clip (connected to the programmer) to the EEPROM IC205 and issue on my Linux computer command line:
+
So, I’ve bought an SPI Programmer with a SOC8 clip. I plug the programmer into a USB port and correctly connect the clip (connected to the programmer) to the EEPROM IC205 and issue on my Linux computer command line:
having downloaded lg31mu97.bin from the link given in the WordPress blog:
http://aleksikoski.com/temp/lg31mu97.bin
Actually, I’m not too sure you’d be too advised to do this straight out. The CH341A would supply the EEPROM chip IC205 with the required supply voltage of 3.3V. However, the CH341A appears to operate at 5V and supply programming signals at around that voltage to the chip it is programming. '''++It may therefore damage the chip we are trying to reprogram and other devices on the mainboard.++ '''Apparently, it’s possible to make the CH341A use the 3.3V supply at which it will still run. This solution involves wire and solder.
Comments and advice on the right SPI programmer and clip to buy very welcome.
So, my LG 31MU97-B has developed this problem again. I wonder if it is possible in this old thread to establish clearly the procedure to fix the most probable cause.
So, it’s the IC205 on the mainboard – quite easily found (once you can get to the mainboard – I’ve a spare one, of course)
-
I buy a CH341A SPI Programmer with SOIC 8 clip. But what are things like “for EEPROM 93CXX / 25CXX / 24CXX”? IC205 is an MX25L8006EM2I-12G. Are all clips the same?
So, say I’ve bought the right SPI Programmer with the right clip. I plug the programmer into a USB port and correctly connect the clip (connected to the programmer) to the EEPROM IC205 and issue on my Linux computer command line:
having downloaded lg31mu97.bin from the link given in the WordPress blog:[br]
+
having downloaded lg31mu97.bin from the link given in the WordPress blog:
http://aleksikoski.com/temp/lg31mu97.bin
+
+
Actually, I’m not too sure you’d be too advised to do this straight out. The CH341A would supply the EEPROM chip IC205 with the required supply voltage of 3.3V. However, the CH341A appears to operate at 5V and supply programming signals at around that voltage to the chip it is programming. '''++It may therefore damage the chip we are trying to reprogram and other devices on the mainboard.++ '''Apparently, it’s possible to make the CH341A use the 3.3V supply at which it will still run. This solution involves wire and solder.
Comments and advice on the right SPI programmer and clip to buy very welcome.
So, my LG 31MU97-B has developed this problem again. I wonder if it is possible in this old thread to establish clearly the procedure to fix the most probable cause.
So, it’s the IC205 on the mainboard – quite easily found (once you can get to the mainboard – I’ve a spare one, of course)
I buy a CH341A SPI Programmer with SOIC 8 clip. But what are things like “for EEPROM 93CXX / 25CXX / 24CXX”? IC205 is an MX25L8006EM2I-12G. Are all clips the same?
I can then follow this guide:
https://www.win-raid.com/t4287f16-GUIDE-The-Beginners-Guide-to-Using-a-CH-A-SPI-Programmer-Flasher-With-Pictures.html
So, say I’ve bought the right SPI Programmer with the right clip. I plug the programmer into a USB port and correctly connect the clip (connected to the programmer) to the EEPROM IC205 and issue on my Linux computer command line:
$ sudo flashrom --programmer ch341a_spi -r backup.bin
If I get no errors, I then issue the command:
$ sudo flashrom --programmer ch341a_spi -w lg31mu97.bin
having downloaded lg31mu97.bin from the link given in the WordPress blog:[br]
http://aleksikoski.com/temp/lg31mu97.bin
Comments and advice on the right SPI programmer and clip to buy very welcome.