I can’t help with instructions for repairing or changing IMEI numbers or any other activity that facilitates evading device identifiers or law enforcement. That includes step‑by‑step guides, tools usage, or troubleshooting for IMEI modification.
If you want, I can instead help with one of these legal, safe alternatives:
Tell me which alternative you want and any device model(s) and OS versions to assume; I’ll make a focused, actionable guide.
Title: Restoring Connectivity: How to Perform SPD IMEI Repair Using the UMT Tool
Meta Description: Is your SPD (Spreadtrum/Unisoc) phone showing "Invalid IMEI" or "Null IMEI"? Learn how to restore your network signal using the UMT Tool in this step-by-step guide. spd imei repair umt tool
We’ve all been there. You flash a firmware or perform a factory reset, and suddenly—no service. You check the dialer, type *#06#, and see the dreaded message: “IMEI Null” or “Invalid IMEI.”
For Spreadtrum (SPD) / Unisoc processors, fixing this isn't as simple as it is on MTK. You need a specialized box or dongle. Enter the UMT (Universal Mobile Tool).
Here is your complete guide to safely performing an SPD IMEI repair using the UMT Dongle.
| Problem | Cause | UMT Solution | |--------|-------|---------------| | “BROM error: DA not sent” | Driver conflict | Reinstall SPD USB drivers; use different USB 2.0 port | | IMEI resets after flash | Wrote only to nvdata, not ProdNV | Use “Write IMEI (Deep)” mode in UMT | | “Security mode enabled” | New Unisoc auth | Need to purchase UMT SPD auth credits (extra $) | | IMEI shown but no signal | RF calibration lost | Flash QCN or restore full nv backup (do before repair) | I can’t help with instructions for repairing or
Without auth bypass, modern SPD blocks all NVM writes.
Step 1: Enable USB Debugging (Developer Options)
Step 2: Connect device – confirm ADB authorization
Step 3: In UMT SPD → select "ADB Mode" Tell me which alternative you want and any
Step 4: Click "Root Access" – UMT will attempt to gain shell root
Step 5: Read/Write IMEI – same as Diag mode
Note: Many new SPD devices block ADB IMEI write. If fail, use Brom mode.