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02-08-2022, 16:34
| #2 (permalink) |
| Product Supporter   Join Date: Jan 2019 Location: USA, New York
Posts: 10,141
Member: 2891705 Status: Offline Thanks Meter: 2,136 | Hello. Please, explain your problem in more detail. Also, what is the current state of your device and what operations have been performed before? |
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02-08-2022, 16:45
| #3 (permalink) |
| Freak Poster  Join Date: May 2005 Location: Senica Age: 47
Posts: 184
Member: 148476 Status: Offline Thanks Meter: 27  | I needed a downgrade to android 6 / customer's request / The phone now works but no network I wrote the board sw, then normal flash via upload mode, update imei, sn, oem info |
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02-09-2022, 08:58
| #4 (permalink) |
| Product Supporter Join Date: Jan 2019 Location: USA, New York
Posts: 10,141
Member: 2891705 Status: Offline Thanks Meter: 2,136 | Hello. You need perform Read Backup from a same device following partitions:
Then perform Write Backup operation on your device and do Factory data reset. After done all operations post here Software logs. We'll check it. |
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| The Following User Says Thank You to Octopus support For This Useful Post: |
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02-22-2022, 10:48
| #6 (permalink) |
| Freak Poster Join Date: May 2005 Location: Senica Age: 47
Posts: 184
Member: 148476 Status: Offline Thanks Meter: 27 | After wirte: Device Model: VNS-L21 System: VNS-L21C185B149 IMEI A: 860918032066641 S/N: 9JT4C16921001922 Verificate file detected Verifying backup files Writing MODEMNVM_BACKUP partition... Writing MODEMNVM_FACTORY partition... Writing MODEMNVM_IMG partition... Writing MODEMNVM_SYSTEM partition... Rebooting device... Write Backup done. Performed by 1.2.8 Software version. Imei :null repair attempt: Job ID: 000000000247CB80 2022-02-22 09:39:42 Starting Repair Info Selected phone model: VNS-L21 Searching HUAWEI USB COM 1.0 port... Detected HUAWEI USB COM 1.0 port Writing bootloader KIRIN650_A6.0_V1... Initializing remote service connection... Writing XLOADER partition... Writing FASTBOOT partition... Bootloader Update successfully Rebooting to fastboot mode... Searching Fastboot devices... Found android device: 9JT4C16921001922 Detected Android Sooner Single ADB Interface port Device Model: VNS-L21 System: VNS-L21C185B149 IMEI A: 000000000000000 S/N: 9JT4C16921001922 FB Lock State: UNLOCKED User Lock State: LOCKED New IMEI A: 860918032066641 Saving backup of OEMINFO... Saving backup of MODEMNVM_IMG... Saving backup of MODEMNVM_FACTORY... Saving backup of MODEMNVM_SYSTEM... Reading info from OEMINFO... OEMINFO Phone Model: VNS-L21 OEMINFO IMEI_A: 000000000000000 OEMINFO Vendor: hw OEMINFO Country: meafnaf Reading info from NV... NV IMEI_A: 860918032066641 NV IMEI_B: 0000002101210K0 Repairing... Writing OEMINFO partition... Writing MODEMNVM_IMG partition... Writing MODEMNVM_FACTORY partition... Writing MODEMNVM_SYSTEM partition... Rebooting device... Repair Info done. Performed by 1.2.8 Software version. Imei still null |
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03-13-2023, 19:06
| #8 (permalink) |
| No Life Poster   Join Date: Jul 2013 Location: Pakistan. Rahim Yar Khan
Posts: 1,661
Member: 1977629 Status: Offline Thanks Meter: 429 | Please help me I need Huawei vns l21 modemnvm_img modemnvm_backup modemnvm_system modemnvm_factory If anyone have this backup please upload for me thanks in advance |
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VNS-L21 [Solved] 
Linear Mode
