OnePlus Nord CE4 Lite CPH2621 ISP Pinout [Tested]
If your OnePlus Nord CE4 Lite is hung on boot logo or your PC cannot see it, you need to have direct access to the board. This guide walks you through ISP points for CPH2621 and exact steps to take before plugging in UFI Box, Easy JTAG Plus, or Flash64. ISP allows you to bypass Qualcomm standard flashing and directly access UFS storage.
Processor of Nord CE4 Lite is Snapdragon 695 and it stores data quickly on UFS memory. Make sure the label says CPH2621 before you start; different board layouts for other Nord models. We have used this wiring layout and it reliably gets storage chip to work on first try.
When This Pinout Helps
- Phone hangs at the OnePlus logo after a failed flash
- Device not detected by the computer
- Storage identification and full backup work
- Boot or partition repair
- Firmware read and write through a supported box
OnePlus Nord CE4 Lite ISP Pinout Image
Check the below board image. It shows marked ISP points near the chip. Compare this image with your motherboard. Using a wrong model diagram or bridged lines can prevent detection or even cause board damage.
ISP Lines and Their Role
| Line | Role |
| Rst | Storage reset signal |
| TXOP / TXON | Transmit differential pair |
| RXOP / RXON | Receive differential pair |
| GND | Common ground on the board |
Tools Needed on the Bench
- UFI Box, Easy JTAG Plus, Flash64, or another UFS-capable box
- Fine jumper wire and a sharp tip
- Microscope or strong magnifier
- No-clean flux and 99% IPA
- Multimeter for continuity and shorts
- Original USB cable and the right UFS adapter
OnePlus Nord CE4 Lite Specifications
| Device | OnePlus Nord CE4 Lite |
| Model | CPH2621 |
| Chipset | Qualcomm Snapdragon 695 |
| Storage | UFS — up to 256GB |
| RAM | 8GB |
| Display | 6.67-inch AMOLED, 120Hz |
| Announced | Mid 2025 |
How to Connect the ISP Points
- Confirm CPH2621 on the label or board.
- Disconnect the battery before cleaning or soldering.
- Open the shield and clean the memory area with IPA.
- Match the diagram with the physical points.
- Connect GND to a clean ground point first.
- Solder the Rst, TXOP, TXON, RXOP, and RXON lines.
- Check each jumper with a multimeter for continuity and shorts.
- Attach the adapter and select the storage profile in the box.
- Run Identify first, then make a full backup.
Common Problems and Fixes
- No chip detected: Double check your GND connection and adapter orientation and closely look at joints.
- Flimsy connection: Shorten jumpers and check for bridging on TX and RX lines.
- Reading error: Clean points again, verify storage profile.
- Board overheating: Unplug right away! You likely have a short somewhere.
- Wrong storage size: Just pause. Verify model and board revision.
Safety Notes
Do not apply power before checking the wiring. A bridged data line or wrong voltage can kill the UFS chip or the motherboard. Start with identification, keep the backup safe, and only continue with a write or repair after the connection stays stable.
Frequently Asked Questions
The OnePlus Nord CE4 Lite uses model code CPH2621. Confirm it before using the pinout.
The Nord CE4 Lite uses the Qualcomm Snapdragon 695 platform with UFS storage.
No. Board layouts differ across Nord models. Use the verified CPH2621 diagram only.
A UFS-capable UFI Box, Easy JTAG Plus, Flash64, or another supported box can be used with the correct adapter and voltage settings.
Final Thoughts
ISP is a reliable fallback when the Nord CE4 Lite stays dead or undetected. Confirm the CPH2621 board, study the marked image, and start with storage identification. A clean backup before any write keeps the job safe.
