Hello,
did this help you? I'm solving the same problem and I don't know how to proceed ...
which one inserted WORKS?
Thank you for your reply
Posted November 19, 2020
Hi John_Admin I can do like this of your guide, Will the machine pick up the cartridges?
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Some times this can happen. Here is step by step solution: Step 1. Make firmware downgrade by WIC Utility to FA27HC version. You will be required Firmware Key to make this procedure. Step 2. Check current firmware version - it has to be FA27HC. Step 3. Install new Maintenance Cartridge or reset by Chip Resetter chip on maintenance cartridge. Check if printer can recognize it now. Step 3. Download and extract latest Chipless Firmware Version - FA99Z9 - http://chiplesssolutions.com/download/WF7710_FWG535TL_FA99Z9.zip Step 4. Upload firmware to printer in normal mode - dont put printer in Program Update mode.
The uploading process will stuck at 70-80% - it is ok!
Printer will blink for about 5-15 minutes accepting new firmware - then will power OFF. Step 5. Open task manager and stop updater process.
Now power on the printer - chipless firmware is installed now in your printer and maintenance cartridge is recognized by printer!
If You have problems - give us screenshots of what You cant do and what Step you cant perform. ''