Dialing *#06# returns a blank screen, a "Null/Null" error, or a generic testing IMEI (e.g., beginning with 350000... ).
Restoring a valid IMEI if the device shows 350000000000006 or Null .
A verified, clean or EFS backup file matching your exact model. Method 1: Restoring via Z3X Samsung Tool Pro (Recommended) sm-g920t nv data file
Treat NV files as sensitive, device-specific artifacts. For SM‑G920T work, use proper Samsung/Qualcomm diagnostic tools, back up before changing anything, and avoid altering device identifiers except via authorized, legal procedures handled by carrier/manufacturer service channels.
syscobox... #WHAT_IS_eMMC... All of mobile phones ... - Facebook 23 Feb 2020 — Dialing *#06# returns a blank screen, a "Null/Null"
Below are the main aspects to understand about SM‑G920T NV data files, risks, and typical workflows.
Do you have access to like Z3X, Octoplus, or Chimera? Is your device currently rooted ? A verified, clean or EFS backup file matching
: Technicians use service software to "Write NV" or "Repair Security" using the downloaded file.
Fixing a corrupted network stack requires writing a healthy back to the device. This process requires specialist software tools. Prerequisites & Equipment A PC running Windows 10 or 11. Official Samsung USB Drivers installed on the computer. A reliable USB data cable. Technician boxes or tools (e.g., Z3X Samsung Tool Pro Go to product viewer dialog for this item. Octoplus Box Go to product viewer dialog for this item. Chimera Tool Go to product viewer dialog for this item.
This occurs when the phone's modem and baseband are not communicating with the operating system. A common fix is to flash a stock modem (also known as a combination file), which can temporarily restore the baseband and allow the tool to read the NV data again.
The "SM-G920T NV data file" (Non-Volatile data) is a critical system file for the T-Mobile Samsung Galaxy S6