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Go Back   GSM-Forum > Product Support Sections > No More Supported Solutions (Dead Products) > No More Supported H/W Products > GOT (Gsm Online Tool) > GOT SEMC


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Old 05-25-2008, 09:57   #1 (permalink)
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AT&T Stripped From W300i! Now What!


I've recently came across six SE W300i handsets that were unlocked and flashed, including EEPROM Flash Zone write that no longer receive AT&T. These were Cingular or AT&T branded handsets. They receive T-Mobile (1900 MHz) just fine.

The local AT&T repair shop was unable to determine what happened. Re-writing the EEPROM and unlocking it had no effect. They received AT&T fine prior to being run through SEMC v0035.

AT&T is in the network list but shows unavailable when a known good AT&T SIM is inserted with a Z520i sitting next to it is showing full bars. AT&T operates on 850 MHz in my area.

Is there a fix for this? Is there a different EEPROM file available? I used W300_EEPROM.eepc 32K file, as provided by the server. Does the problem lie elsewhere? There is a very limited market for single band W300i handsets so I would really like to get these fixed.
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