Sleep of Death and cant wipe cache partition
I have some problem with my phone: Samsung Galaxy i9082 / Galaxy Grand Duos.
I have problem with sleep of death / freeze screen when i use 2 simcard. (when only one is ON problem is dont exist).
When i am looking for solution in GOOGLE (because my phone was in service and this not resolve problem... a lot of people in Poland have this problem with this phone - every opinion about this phone now contains "problem with system stability" or somethink like that - thats so sad... because opinions was published after that when i bought this phone
) - i found i should wipe my cache partition...
... so i just shut down my phone, power on it in recovery mode, then i choose "wipe cache partition" and... some error
And one more - when i power on it into recovery mode i just see first "brak poleceń" or something like that (that mean "no command" i think)
Could somebody help me ?
What should i do to resolve my problems ?
Is it "popular" problem ?
Thanks for your help and opinions and sorry for my english (i am not native speaker
PS. when i bought this phone this have romania region code... but i change soft to russian newer version. (4.2.2) (official)