Support

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Please tell us your phone model, the chip marking, whether you use a clip or socket or a 1.8 V adapter, and at which step the operation stopped. Do not include confidential firmware data.

Common problems

The programmer is not found

Use a working OTG adapter or cable, then unplug and reconnect the CH341A. Allow USB access when Android asks. Some phones need OTG to be switched on in their settings.

The chip is not detected

Check the chip orientation (pin 1 to the dot), the clip or socket contact, and that the chip is powered only by the programmer. For chips on a board, removing the chip or holding the board without power often helps.

The chip is 1.8 V

Fit a 1.8 V adapter between the programmer and the chip, then confirm the adapter in Settings. The app blocks writing to 1.8 V chips until then.

Erase or write stops at "protected"

Some chips are write-protected. Keep Unprotect Protected Chips on in Settings, check the WP pin contact, and try again. If it still fails, share the report.

Verify failed

The data on the chip does not match the file. Improve the clip contact, keep the cable still, and run the operation again. Do not use the device until a verify passes.

The file is refused

The file is bigger than the chip or not a valid BIN / Intel HEX file. Make sure you have the firmware for this exact chip.

Data deletion

CH341A Mobile has no user accounts. Personal information sent with a manual error report may include your contact details and message. Automatic success reports collect limited technical evidence; host connection logs may contain your IP address.

1. Email support@khandishnetwork.net with the subject Data deletion.
2. Send it from the email address you used in the report, or write that address in the message.
3. We review and process requests to delete reports linked to that email address, and reply within 30 days. Automatic success evidence is not tied to an account or email and may not be individually identifiable.

Clearing app data or uninstalling removes app-private settings and pending reports. Backups saved in shared storage may remain and can be deleted with the Backup Manager or Android file manager. Details: Privacy Policy.