Chickhen wont work, he's on 6.10 and chickhen only works on 5.03 and previous. And since he tried pandora and mms and that didnt work, either the battery was pndora'd wrong and isnt really a pandora battery, the mms was made wrong or corrupted, or he has a TA-88 v3 or TA-90 motherboadrd. If the psp has ta-88/3 or ta-90, then chickhen would have been his only cfw option, had he not updated beyond 5.03.