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Benq W1070 factory reset itself

My W1070 projector loses settings every time I turn it off so lamp hours and other settings are all back to factory defaults. Just curious if anyone has any suggestions? Thanks

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Jaca
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Hi!
https://elektrotanya.com/benq_w1070_w1080st_ver.00a_level3.pdf/download.html
There is IC20 EEPROM on page 10. left up corner. May be. Take out, read, write it a new one. 

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Thank you so much !!!!

It took me a while to getting round to replacing it but I have just replaced that chip (U67) and now it remembers everything. I did not bother to read or write it back as I thought it was pointless if it was bad and it looks like it works perfectly now so just wanted to come back and say a big thank you and that I really appreciate the help :)

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