why some times the eeprom must be remove?

why some times the eeprom must be remove? Odometer Correction with the Diagprog III programmer:
Easy and Safe Digital Mileage Correction

why some times the eeprom must be remove?

Odometer Correction Forum for Digital Mileage Correction -> General questions

Author	Message
almeida Member Joined: 07 Aug 2008 Posts: 95	Posted: Thu Aug 21, 2008 10:11 pm    Post subject: why some times the eeprom must be remove? hello people some one can explain me why in some cars the eeprom must be remove. until now i´m not remove any eeprom but i saw in some cars that must be done why? i don´t have yet a station to do this work. it have other way to do it? for ex lift the 1 or 2 pin the eeprom. i like to do another ask. when the correction it must be done in bsi we must disconnect the battery during the work? thanks a lot for your replays. regards
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The Doc Junior member Joined: 08 Feb 2006 Posts: 18	Posted: Wed Sep 17, 2008 12:12 pm    Post subject: : why some times the eeprom must be remove? I never remove the eeprom and leave it on this is the safest way. Lift pins 2 & 4 for best results - this operation is always good and safe esp when rainnig. Ignore the manual it makes no sense. The battery is best left on and the vehicle connect to mains voltage. _________________ The DASHDOCTOR The original & best
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almeida Member Joined: 07 Aug 2008 Posts: 95	Posted: Wed Sep 17, 2008 12:55 pm    Post subject: not remove eeprom thanks for your replay
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hcip Senior Member Joined: 03 Mar 2006 Posts: 226 Location: Brgy. Commonwealth, Quezon City Philippines	Posted: Wed Sep 17, 2008 2:22 pm    Post subject: : why some times the eeprom must be remove? lifting SOIC eeprom pin is risky you can damage the pin of this eeprom when lifting The SOIC eeprom has a small package and when you heat the pin the package also heated and lifting the pin when it is hot will damage this pin and package this is not the same as you lifted the MCU pin MCU package is bigger that SOIC and the MCU pin is smoother that SOIC pin I am not removing eeprom when programming and writing its depend upon the programmer you are using Short the crystal to avoid oscillation when applying 5V to the circuit and it also the same as you remove the eeprom _________________
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almeida Member Joined: 07 Aug 2008 Posts: 95	Posted: Wed Sep 17, 2008 4:56 pm    Post subject: remove eeprom hello hcip. first i like to say thanks to you because your replays are very good. i like to ask you how about the eeprom M35080, you don´t remove too? it could be programe on the board? it´s not danger? thanks on advance. sorry my english, but i think you understand me.
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hcip Senior Member Joined: 03 Mar 2006 Posts: 226 Location: Brgy. Commonwealth, Quezon City Philippines	Posted: Wed Sep 17, 2008 10:34 pm    Post subject: : why some times the eeprom must be remove? The only M35080 eeprom I have to remove is the new generation not erasable It cannot erase with in circuit so you need to remove prior to erase it But removing 8 pin eeprom is an easy job without risk than to lifting pin of it I can remove and return any device without problem even MCU with 144 pin up or PLCC and BGA device But I dont remove most 8pin eeprom to save time _________________
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almeida Member Joined: 07 Aug 2008 Posts: 95	Posted: Thu Sep 18, 2008 7:02 am    Post subject: remove eeprom thanks again hcip
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