SELLER FORBIDES TO BUY WITHOUT READING DESCRIPTION! IF YOU BOUGHT, MEANS YOU AGREED WITH ALL WRITTEN IN THE DESCRIPTION OF THE GOODS.
THE GOODS ARE NOT SUBJECT TO EXCHANGE OR REFUND, YOU AGREE TO PAYING THIS GOODS WITH THIS.
If you have a question, ask it to the seller by clicking the "ASK QUESTION" button
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The seller forbids to buy goods in the case of:
1. If you do not know his purpose
2. If you do not know how to use it (the seller does not teach)
3. If you do not know how to use a computer
4. If you do not know what an archiver is
5. If you are not sure that the files will help you to repair the printer.
6. If you do not want or can not read the description of the purchased goods
7. If you do not know how to use the memory chip programmer (the seller does not teach)

Seller guarantees:
1. That the files are fully functional and tested on more than 10 printers
2. That you will receive an archive with files by email, which you specify at registration
order after order payment

In case the memory chip is correctly dropped and flashed by the programmer, you can save the printer from error 5B00,5B02, this is an error of the so-called printer diaper.

Please do not buy the goods if you do not understand its purpose, and then in the case of self-created problems, look for those guilty in the person of the seller of the goods.

Files are good, that is not discussed. Files are read from the board, part number of which is QM7-5453 (QM4-5398)

Thank you for your purchase, I will be glad to answer your questions!