Вот официальный ответ Nokia по твоей проблеме:
Procedure:
1) Flash E51_blank_504KB_pmm_10.fpsx file to phone with firmware update:
Firmware Update-> Options -> select E51_blank_504KB_pmm_10.fpsx into
Image field and empty other fields
2) Flash the whole SW package to phone with firmware update
3) Run factory settings
Phone should work now. Phone memory is empty and you can't save any old
data from phone memory. Memory card and SIM card should work as earlier
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