SamehFix Downgrade
Lexmark Firmware Downgrade Solution
If you’re using Lexmark printers with firmware version LW90.xxx.xxx and experiencing toner compatibility issues, you’re not alone. Many updated Lexmark devices block third-party or refilled toner chips after firmware updates.
This guide provides a reliable downgrade method from firmware version LW90.xxx.xxx to LW63.xxx.xxx, allowing full compatibility with all toner chips, including aftermarket solutions. This is ideal for users seeking cost-effective printing without firmware restrictions.