Download Samsung Galaxy A037F NVDATA backup from RomWala. Used for repairing null IMEI- unknown baseband- network issues- and restoring factory calibration. Restore using Octoplus, Chimera Tool, or SP...
| Description | NVDATA backup file for Samsung Galaxy A037F 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 A03s |
| Brand | Samsung |
| Model | SM-A037F |
| Codename | a03s |
| 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 | 3GB-4GB LPDDR4X |
| Storage Options | 32GB-64GB-128GB eMMC 5.1 |
| Expandable Storage | Yes (microSDXC up to 1TB) |
| Battery Capacity | 5000mAh non-removable |
| Charging Support | 10W standard charging |
| Display | 6.5 inches PLS IPS LCD |
| Display Resolution | 720 x 1600 pixels |
| Display Refresh Rate | 60Hz |
| OS | One UI Core 3.1-5.1 based on Android 11-13 |
| Rear Camera | 13MP + 2MP |
| Front Camera | 5MP |
| Fingerprint | Side-mounted |
| Network | 4G LTE Dual SIM |
| What is NVDATA | NVDATA (Non-Volatile Data) stores factory calibration parameters, RF settings, device configuration, and IMEI-related data for MediaTek devices. |
| Important Notes | Note 1: This backup is for Samsung SM-A037F Note 2: Also known as Samsung Galaxy A03s Note 3: MediaTek Helio P35 platform Note 4: Backup original NVDATA before restoring Note 5: Different from SM-A037G or SM-A037M variants |
| Use Cases | Fix baseband unknown after flashing, Restore null IMEI, Repair network connectivity issues, Fix Wi-Fi and Bluetooth problems, Recover corrupted NVDATA, Restore factory calibration, Resolve 'No Service' errors |
| Compatible Tools | Octoplus Box, Chimera Tool, Z3X Samsung Tool, SP Flash Tool, MTK Client, UFI Box |
| How to Enter BROM Mode on Samsung A037F | 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 Step 1: Launch Octoplus Software and login Step 2: Select Samsung module and MediaTek platform Step 3: Select SM-A037F model Step 4: Connect device in BROM mode Step 5: Select 'Write NVDATA' option Step 6: Browse and select the NVDATA backup file 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 NVDATA backup file Step 7: Click 'Restore' button Step 8: Wait for completion Step 9: Device will reboot |
| How to Restore Using SP Flash Tool | 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 NVDATA Step 4: Load NVDATA backup file 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 Step 10: Disconnect and reboot device |
| 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, MediaTek USB VCOM drivers, Octoplus/Chimera or SP Flash Tool, Windows PC, Backup original NVDATA before restore |
| Advantages | Restore lost IMEI numbers, Fix baseband unknown, Repair network connectivity, Fix Wi-Fi and Bluetooth problems, Recover corrupted 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-A037F only, Not for SM-A037G or SM-A037M variants, Restoring incorrect NVDATA can brick device, Backup original 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 |
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