Dosto inshallah sub kharith sy hogn hy.
Mary Pass 4GB Usb may ayk msla aya hy.
Wo jp may Usb port may plug krta tu usb k propertier capcity (free,used) sahi dkayi dyta hy.
Aur format nahi hota aur data b os may store nahi hota. May na hp format tool per b try keya Disk manage sy b format nahi hota msg aata hy "fail to format".
Thanks in advance.