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Already SMD, unable to burn-in program to EEPROM

Category: Hardware
Product Number: MAX16046ETN, MAX16046

We did not perform an erase operation on the EEPROM inside before SMD, which resulted in us being unable to burn a new program to this chip after assembling it into a finished product.
1.How did this situation occur?

2.Do I have to erase all the programs in the EEPROM before SMD?

3. How to handle those that have already been assembling it into a finished product before they can be used normally? Can software solve this?

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