E for old HWID, M for new HWID
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Do you know your hardware version? FW 3.62 was prented for both version of hardware.
Nokia 6230i exist now in two hardware versions. nokia have too many problems with hardware of phone (phone can't take images, can't save into gallery etc) due three flash chips inside that aren't stable so new hardware version have only one big flash chip, also bluetooth module was changed. old hw version is signed as E, new is signed as M.

Data package v 102.0 is only for following old HWID versions:
1000-1005
2000-2005 and 2007
3000-3004
4000-4003
5000-5006
8000

Data package v 102.0 is only for following new HWID versions:
HWID 2008 and newer (from Beijing factory)
HWID 3005 and newer (from Elcoteq factory)
HWID 6000 and newer (from TMC factory)
HWID 7000 and newer (from Reynosa factory)
HWID 8001 and newer (from Foxxconn factory)

You can to see your Hardware version in OXYGEN PHONE MANAGER II