. It indicates that the data written to the chip does not match the source file or the verification buffer. Win-Raid Forum Primary Causes of Disagreement
Never click "Write" immediately. Follow this sequence to isolate the error: the chip and save the backup. Erase the chip completely.
The CH341A is often designed for 5V logic, while most modern BIOS EEPROMs operate at 3.3V or even 1.8V. Using a 5V signal can cause erratic behavior, corrupt data, and verification errors. This is a very common hardware-level problem. Additionally, voltage sags or drops during the read/write process can corrupt data. Follow this sequence to isolate the error: the
Use isopropyl alcohol on a Q-tip to clean the pins of the BIOS chip.
This error means the data currently written to the physical chip does not match the file loaded in your programming software. It typically occurs during the verification phase after an attempted write or erase operation. Why the Disagreement Error Happens Using a 5V signal can cause erratic behavior,
Carefully inspect your programmer board under good light and magnification. If you suspect a hardware fault, the easiest solution is often to purchase a replacement unit, preferably a version, which typically includes proper 3.3V level shifting and better power regulation.
Help!chip main memory with the contents are in disagreement! read it back to verify
Unfortunately, the quality control on cheap CH341A programmers can be poor. Some units arrive with:
In simple terms:
How many is the specific chip you are trying to flash, and have you tried cleaning the pins yet?
The error is a critical verification failure that occurs when using a CH341A USB programmer . It means the software flashed data onto a SPI Flash or EEPROM chip, read it back to verify, and discovered that the data written does not match the file source.