IPHONE 4s can't jailbreak

Hi friends



I have iphone 4s can't jailbreak ios 7.0.4 with evans

i try with 1.0.7 and 1.0.8 the same uploading data after modfying files system but when i click on evans icons iphone restart and evans application exit itself

when look on phone jailbreak donse not work and no cydia icone



can someone plz help me how to fix this issue



thanks in advance

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