How to unbrick my Samsung Tab 1 (7 inch) from T mobile brought it from S. KOREA
Old Samsung devices (Galaxy S1 to S3 generations) where near impossible to brick unless you had the emmc bug or somehow flashed missmatched set of bootloaders. The best way to attempt to recover the device is grab a firmware package from samsfirmware or similar. Force device in to download mode with either key combinations or with a jig then proceed to flash stock firmware using ODIN.