I.T.MOBILE
*#4960# send ----> info
*#3210# send ----> sp lock
*#2820# send ----> version
*73738# send ----> hardware reset
*#2220# send ----> reset to default
*#2634# send ----> unlock gprs settings
*#1110# send ----> special net unlock
*#8140# send ----> net lock
#4960*code# send ----> unlock
#4960*code*code # send ----> unlock
*#3727372# ------ > please wait for N21i.N22i.N221i
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user code: 1122, 3344, 1234, 5678
Factory mode: *#987#
- Restore factory settings: *#987*99#
LCD contrast: *#369#
software version: *#900#
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