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Go Back   GSM-Forum > GSM & CDMA Phones / Tablets Software & Hardware Area > Lenovo

Lenovo General Lenovo phones discussion, firmwares, solution, help

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Old 10-28-2023, 06:12   #1 (permalink)
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Tab 2 A8-50LC dead after flash


it was hang on logo , after flash dead only mtk port , tried different file



Code:
PTFN: MediaTek PreLoader USB VCOM (Android) (COM8)
MODE [0]: PRELOADER PORT; PORT: 8
Waiting for BOOT ACK...
BROM: Init... Ok
CHIP: MT6735 SBID: 0x8A00 HWVR: 0xCA00 SWVR: 0x0000 EVOL: 0x0000 HWC: 0x0321
  TYPE: LEGACY  [MTK]
BROM: Sec Level: 0x00000000 Mode: PLAIN
  VER: 0xFF BL: 0x01 [PRELOADER PORT]
AGENT: AUTO: 0_base: base_v2216
  [3365c4d2] C:\InfinityBox\CM2MT2\boot\0_base\base_v2216\MTK_AllInOne_DA.bin
Looking for suitable BootChain in DA...
Found MT6735
AGENT: MTK_DOWNLOAD_AGENT
BROM: Sending 1st DA...
  DA sent
Jump to DA... Ok
DA: Sync...
DA: AGENT started
NAND: DEVICE NOT FOUND
EMMC: OK
  CID: 90014A4838473165050706C4141A06E7
DA v4.2.155
DA: DRAM ready
Boot to 2nd DA... Ok
Load HW info...
EMMC CID: 90014A4838473165050706C4141A13E7 crc Ok
  Ven: Hynix OEM: 330 ID: 483847316505 [H8G1e] PRV: 0x07
  SNN: 113513498 [0x06C4141A]
  MM/YY: 1/2016
  BOOT1: 0x00400000 [ 4.00 Mb ]
  BOOT2: 0x00400000 [ 4.00 Mb ]
  RPMB: 0x00400000 [ 4.00 Mb ]
  USER: 0x1D2000000 [ 7.28 Gb ]

RAM: SRAM: 0x00020000 [ 128.00 Kb ]
RAM: DRAM: 0x80000000 [ 2.00 Gb ]

CHIP: MT6735 SBID: 0x8A00 HWVR: 0xCA00 SWVR: 0x0000 EVOL: 0x0000 HWC: 0x0321
  TYPE: LEGACY  [MTK]
  RNID: F74A26C681AE52AD3A0DE2BE981F0F7C

DA: Status: BLANK FLASH; Boot Style: EMMC FLASH BOOT

USB: HIGH-SPEED
Boot done LEGACY  [MTK]

Analyze PMT... Ok
PMT: LGPT [0x06] Records: 26
Select info source... Ok
  Patch Level: LMY47D
  Display ID: A8-50LC_S000035_151016_ROW
  SW Version: A8-50LC_S000035_151016_ROW
  Ver. CodeName: REL
  Ver. Release: 5.1
  Build Time: 16/10/2015 9:07:30 am
  Product Model: Lenovo TAB 2 A8-50LC
  Product Brand: Lenovo
  Product Name: LenovoTAB2A8-50
  Product Device: A8-50LC
  Product Board: A8-50LC
  CPU: arm64-v8a,armeabi-v7a,armeabi
  CPU: armeabi-v7a,armeabi
  CPU: arm64-v8a
  Product Manfct: LENOVO
  Board Platform: mt6735
  Product Info: A8-50LC
  SW: full_lcsh8735_6tb_a8_l1-user 5.1 LMY47D 1444986299 release-keys
Strategy: [lenovo]
Firmware ID: MT6735_LENOVO_Lenovo_TAB_2_A8-50LC_OSv5.1_A8-50LC_S000035_151016_ROW_LMY47D_A8-50LC
Read [1/26]: preloader.bin 4.00 Mb
Process file... Ok Ok [ 146.00 Kb ]
Read [3/26]: proinfo.img 3.00 Mb
Process file... Ok Ok [ 384 B ]
Read [4/26]: nvram.bin 5.00 Mb
Process file... Ok Ok [ 4.38 Mb ]
Read [7/26]: lk.bin 512.00 Kb
Process file... Ok Ok [ 384.00 Kb ]
Read [9/26]: boot.img 16.00 Mb
Process file... Ok Ok [ 7.09 Mb ]
Read [10/26]: recovery.img 16.00 Mb
Process file... Ok Ok [ 8.06 Mb ]
Read [11/26]: logo.bin 8.00 Mb
Process file... Ok Ok [ 1.26 Mb ]
Read [15/26]: secro.img 6.00 Mb
Process file... Ok Ok [ 132.00 Kb ]
Read [17/26]: tz.img 5.00 Mb
Process file... Ok Ok [ 59.17 Kb ]
Read [18/26]: tz.img 5.00 Mb
Read [22/26]: system.img 1.81 Gb
Process file... Ok Ok [ 1.78 Gb ]
Read [23/26]: cache.img 400.00 Mb
Create image... Ok Ok [ 8.00 Mb ]
Read [24/26]: userdata.img 4.89 Gb
Create image... Ok Ok [ 34.68 Mb ]

Gathering image info...
Build scat... Ok
FW Size: 1.85 Gb
Android Info saved: _Android_info.txt
Scatter: MT6735_Android_scatter.txt
Saved: C:\Users\justf\Desktop\ lenovo\MT6735_LENOVO_Lenovo_TAB_2_A8-50LC_OSv5.1_A8-50LC_S000035_151016_ROW_LMY47D_A8-50LC\
Verify device config...
Ok
Loaders Ok
Verify firmware [MT6735_LENOVO_Lenovo_TAB_2_A8-50LC_OSv5.1_A8-50LC_S000035_151016_ROW_LMY47D_A8-50LC]...
Exist
Done: 00:08:52
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Old 10-29-2023, 20:14   #2 (permalink)
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Hi,

- 1st make security backup of nvram amd other security items (with box, or manual)

- 2nd, flash factory firmware, use included flasher

A8-50LC_S000035_151016_ROW

check if battery is okay, and connect to charger. it should start charging,
and if battery has enough juice, should power on.

if still dead ... definatly not a software problem.

b.r.
Alex
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