Samsung A022G U3 NVRAM NVDATA Backup
Download Samsung Galaxy A022G U3 NVRAM and NVDATA backup from RomWala. Used for repairing null IMEI- unknown baseband- network issues- and Wi-Fi/Bluetooth problems. Restore using Octoplus or Chimera T...
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Samsung A022G U3 NVRAM NVDATA Backup
| Description | NVRAM and NVDATA backup files for Samsung Galaxy A022G U3 variant from RomWala. Based on MediaTek MT6765 platform. Used for repairing null IMEI- unknown baseband- network issues- Wi-Fi/Bluetooth problems- and restoring factory calibration. Restore using Octoplus, Chimera Tool, or SP Flash Tool in BROM mode. |
| Device Name | Samsung Galaxy A02s / Galaxy A022G |
| Brand | Samsung |
| Model | SM-A022G |
| Variant | U3 |
| Codename | a02s |
| Chipset | MediaTek MT6765 Helio P35 |
| Chipset Manufacturing Process | 12nm |
| CPU | Octa-core (4x2.35GHz Cortex-A53 + 4x1.8GHz Cortex-A53) |
| GPU | PowerVR GE8320 |
| RAM Options | 2GB-3GB-4GB LPDDR4X |
| Storage Options | 32GB-64GB eMMC 5.1 |
| Expandable Storage | Yes (microSDXC up to 1TB) |
| Battery Capacity | 5000mAh non-removable |
| Charging Support | 10W standard charging |
| Display | 6.5 inches IPS LCD |
| Display Resolution | 720 x 1600 pixels |
| Display Refresh Rate | 60Hz |
| OS | One UI Core 3.1-4.1 based on Android 10-12 |
| Rear Camera | 13MP + 2MP |
| Front Camera | 5MP |
| Fingerprint | No (on some variants) |
| Network | 4G LTE Dual SIM |
| What are NVDATA and NVRAM | NVDATA: Non-Volatile Data - stores factory calibration parameters, RF settings, device configuration, and IMEI-related data NVRAM: Non-Volatile Random Access Memory - stores device configuration including IMEI, MAC addresses, Bluetooth address, and radio calibration data |
| Important Notes | Note 1: This backup is for SM-A022G U3 variant Note 2: Different bootloader version (U3) - check compatibility Note 3: Samsung MediaTek devices require specific procedures Note 4: Backup original NVRAM/NVDATA before restoring Note 5: U3 refers to bootloader version/region variant |
| Use Cases | Fix baseband unknown after flashing, Restore null IMEI, Repair network connectivity issues, Fix Wi-Fi and Bluetooth problems, Recover corrupted NVRAM/NVDATA, Restore factory calibration |
| Compatible Tools | Octoplus Box, Chimera Tool, Z3X Samsung Tool, SP Flash Tool, MTK Client, UFI Box |
| How to Enter BROM Mode on Samsung A022G | Method 1 - Key Combo: Power off, press and hold Volume Up + Volume Down, connect USB Method 2 - Test Points: Short test points on motherboard (for locked devices) Method 3 - Professional Box: Use Octoplus/Chimera to force BROM mode |
| How to Restore Using Octoplus Box | PreRequisites: Octoplus Box with license, Samsung MediaTek cable or USB Step 1: Launch Octoplus Software and login Step 2: Select Samsung module and MediaTek platform Step 3: Select SM-A022G model Step 4: Connect device in BROM mode Step 5: Select 'Write NVRAM/NVDATA' option Step 6: Browse and select the backup files Step 7: Click 'Write' or 'Start' button Step 8: Wait for completion Step 9: Disconnect and reboot device |
| How to Restore Using Chimera Tool | PreRequisites: Chimera Tool license (paid), MediaTek drivers Step 1: Launch Chimera Tool and login Step 2: Connect device to PC Step 3: Select 'MediaTek' module Step 4: Go to 'Store/Restore Backup' function Step 5: Select 'Restore' option Step 6: Browse and select backup files Step 7: Click 'Restore' button Step 8: Wait for completion Step 9: Device will reboot |
| How to Restore Using SP Flash Tool (MediaTek) | PreRequisites: MediaTek USB VCOM drivers, SP Flash Tool, MTK Bypass Tool Step 1: Launch SP Flash Tool as administrator Step 2: Load scatter file from full firmware Step 3: Uncheck all except NVRAM and NVDATA Step 4: Load NVRAM and NVDATA backup files Step 5: Click 'Download' button Step 6: Run MTK Bypass Tool Step 7: Connect device in BROM mode Step 8: Wait for completion Step 9: Green checkmark indicates success |
| How to Write IMEI After Restore | Method 1 - Octoplus Tool: Use Octoplus Box to write IMEI directly Method 2 - Chimera Tool: Use Chimera Tool's IMEI repair function Method 3 - Engineer Mode: Dial *#*#3646633#*#* (if accessible) Method 4 - Maui META Tool: Use Maui META Tool for Samsung MediaTek |
| PreRequisites | 70 percent battery, Original USB cable, Professional box (Octoplus/Chimera) or SP Flash Tool, Windows PC, Backup original NVRAM/NVDATA before restore |
| Advantages | Restore lost IMEI numbers, Fix baseband unknown, Repair network connectivity, Fix Wi-Fi and Bluetooth problems, Recover corrupted NVRAM/NVDATA |
| Requirements | Samsung USB drivers, Professional tool (Octoplus/Chimera) or SP Flash Tool, Windows PC, USB cable, BROM mode, Backup before restore |
| Warnings | Use on Samsung SM-A022G U3 only, Different bootloader version may cause issues, Restoring incorrect files can brick device, Backup original NVRAM/NVDATA first, IMEI numbers must match device, IMEI modification laws apply, All operations at your own risk |
| Troubleshooting | Device not detected - reinstall Samsung/MediaTek drivers, BROM mode not entering - try test points, Auth error - use MTK Bypass Tool, Octoplus/Chimera not detecting - check cable and drivers, Flashing fails - try different USB port, IMEI still null - write IMEI using professional tool, Baseband unknown - reflash full firmware via Odin first |
Samsung A022G U3 NVRAM NVDATA Backup - Description & Features
Download Samsung Galaxy A022G U3 NVRAM and NVDATA backup from RomWala. Used for repairing null IMEI- unknown baseband- network issues- and Wi-Fi/Bluetooth problems. Restore using Octoplus or Chimera Tool. Direct link below.
Tags:
#SamsungA022G #A022G #NVRAM #NVDATA #IMEIRepair #BasebandFix #Octoplus #ChimeraTool #RomWala
Tags:
#SamsungA022G #A022G #NVRAM #NVDATA #IMEIRepair #BasebandFix #Octoplus #ChimeraTool #RomWala
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