Samsung SM-A226 (Galaxy A22 5G) ISP Pinout Overview

The Samsung Galaxy A22 5G (model SM-A226B/DS and variants) is powered by the MediaTek Dimensity 700 (MT6833) chipset and uses a UFS 2.1 storage interface. Because the device uses UFS rather than a standard eMMC bus, ISP (In-System Programming) access requires a compatible box or adapter that supports MediaTek UFS ISP mode. Direct UFS ISP soldering is more complex than eMMC ISP — technicians must identify the correct test pads on the motherboard for CLK, CMD, DAT0, and related signals.

When Is ISP Required?

ISP access on the SM-A226 is typically needed when:

  • The device is hard-bricked and does not respond to standard download mode (Odin).
  • FRP (Factory Reset Protection) lock cannot be cleared via software methods.
  • The bootloader is corrupted and normal USB flashing is impossible.
  • A dead-boot condition exists due to a failed OTA or manual flash.

ISP Test Pad Locations (UFS Interface)

The following pads are the key ISP connection points on the SM-A226 PCB. Pad coordinates are approximate and based on community-reported findings — always verify visually under magnification before soldering.

  • CLK (RCLK) — UFS reference clock signal pad, typically near the UFS IC on the upper-mid board area.
  • DAT0 (DIN/DOUT) — Bidirectional data line; part of the M-PHY differential pair.
  • CMD (RESET / REF_CLK) — Command/reset line for UFS initialization.
  • VCC — Primary storage supply, typically 2.9 V–3.0 V; confirm with multimeter before connecting.
  • VCCQ — I/O supply voltage for UFS, typically 1.8 V.
  • GND — Common ground; multiple ground pads available across the board.

Note: Because UFS uses a high-speed differential serial interface (M-PHY), successful ISP connection requires a supported adapter (e.g., EasyJTAG Plus with UFS adapter, or UFI Box with UFS socket). Simple clip-based eMMC adapters will not work on this device.

Recommended ISP Procedure

  1. Fully disassemble the device and disconnect the battery.
  2. Locate the UFS test pads using the reference diagram and confirm continuity.
  3. Solder fine (30–32 AWG) magnet wire to CLK, DAT0, CMD, VCC (3.0 V), VCCQ (1.8 V), and GND pads.
  4. Connect to your ISP tool/adapter (EasyJTAG Plus or UFI Box recommended).
  5. Launch the corresponding MediaTek UFS module and select SM-A226 or MT6833 profile.
  6. Perform the required operation: firmware read, FRP erase, or full flash.

Additional Notes

Always confirm board revision before proceeding, as Samsung occasionally revises PCB layouts between production batches. Use a multimeter in diode mode to verify pad identity before applying power. Incorrect voltage on VCCQ or VCC can permanently damage the UFS IC.

Pin / Test Point Reference

PinDescription
CLK (RCLK)UFS reference clock signal pad — Part of M-PHY differential pair; exact pad location varies by PCB revision
DAT0 (DIN/DOUT)Bidirectional UFS data line — High-speed differential; requires UFS-capable ISP tool
CMD / RSTUFS command or reset line for initialization — Verify with continuity test before soldering
VCCPrimary UFS storage supply voltage — Typically 2.9 V–3.0 V; confirm with multimeter
VCCQUFS I/O supply voltage — Typically 1.8 V; do not exceed
GNDCommon ground reference — Multiple GND pads available; use nearest available

Tools required: EasyJTAG Plus with UFS adapter, UFI Box with UFS socket, UMT (with MediaTek UFS support), Soldering station (fine-tip), 30–32 AWG magnet wire, Multimeter (diode/continuity mode), Microscope or magnification loupe

Supported operations: Read Firmware / Full Backup, FRP Erase, Dead Boot Repair, IMEI Repair (where legally permitted), Full UFS Flash / Restore

⚠ Safety note: UFS VCC = 2.9–3.0 V, VCCQ = 1.8 V. Applying incorrect voltage will permanently destroy the UFS IC. Disconnect battery before soldering. ISP via UFS requires a specialized adapter — standard eMMC clips are incompatible.