The following parametric specifications are typical for devices in this class and should be verified against the manufacturer's specific datasheet:
| Parameter | Symbol | Min | Typ | Max | Unit | | :--- | :---: | :---: | :---: | :---: | :---: | | Supply Voltage | $V_CC$ | 1.8 | 3.3 | 3.6 | V | | Operating Current (TX) | $I_TX$ | - | 25 | 35 | mA | | Operating Current (RX) | $I_RX$ | - | 12 | 15 | mA | | Operating Frequency | $f_osc$ | 2400 | - | 2480 | MHz | | Operating Temp | $T_op$ | -40 | +25 | +85 | °C |
The .tar extension (Tape ARchive) is Samsung’s preferred packaging format for firmware and recovery files. Samsung devices use Odin (the PC tool for flashing factory binaries) which exclusively accepts .tar or .tar.md5 archives. Unlike the .img files used by most Android devices, a .tar package contains the raw recovery image wrapped for secure download via Odin.
Thus, twrp3021smt560tar is a complete, ready-to-flash TWRP 3.0.2-1 recovery image for the Samsung Galaxy Tab A 8.0 (SM-T560), packaged for Odin.
Cause: Samsung’s bootloader lock.
Fix: Enable "OEM Unlock" in Developer Options before booting into Download Mode. If the option is missing, set the tablet’s date back 7 days, check for system updates, then reboot.
Let’s break the filename down piece by piece to understand what we are looking at:
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