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Lenovo General Lenovo phones discussion, firmwares, solution, help

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Old 07-27-2018, 06:11   #46 (permalink)
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lenovo a7020a48 dead here how flash here pleae tell me

i am try 3 flash file but eror come here

Lenovo_A7020a48_S312_MT6755_20160926

Lenovo_A7020a48_S318_MT6755_20161128

Lenovo_A7020a48_S420_MT6755_20160928
i am flash tool try but eror come

da download pros 100 not come here proses

*** Edit:

phone alive but
phone bassband unknow imei null

Last edited by Brka; 07-28-2018 at 15:06.
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Old 07-28-2018, 20:54   #47 (permalink)
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You may have a Chinese model of A7020a48 also,

Read post #30 in this thread.

Check PM also, I sent you something to try and play with.

b.r.
Alex
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Old 08-23-2018, 20:50   #48 (permalink)
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like how exactly do i have to idenify this model coz it is lenovo a7020a48 with finger print scanner.Guys it is still stuck in dll image even after flash
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Old 09-03-2018, 21:01   #49 (permalink)
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Quote:
Originally Posted by hussy b jay View Post
like how exactly do i have to idenify this model coz it is lenovo a7020a48 with finger print scanner.Guys it is still stuck in dll image even after flash
DL Image failed is solved by enabling "USB Download Checksum" and "USB Storage checksum"
under SPFlashTools drop-down menu OPTIONS / OPTION / DOWNLOAD

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Alex
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Old 01-24-2019, 10:03   #50 (permalink)
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Hello,
already flashed with 2 version
but still same unknown baseband
A7020a48_S318_161128_ROW
A7020a48_S259_160721_ROW fingerprint version

today i searched other phone to read NVRAM backup but phone had 3GB ram
and damaged /Unknown baseband phone have 4GB ram read info same with box

Last edited by Brka; 01-27-2019 at 21:26. Reason: merged posts
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Old 01-27-2019, 21:26   #51 (permalink)
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Quote:
Originally Posted by syed tuqeer View Post
Hello,
today i searched other phone to read NVRAM backup
but phone had 3GB ram
and damaged /Unknown baseband phone have 4GB ram
read info same with CM2
Okay, can you take a picture of the back sticker,
upload to some image sharing site (like imgur etc.),
and send me in private message.
It's really hard to guess without such info,
and thus, hardly to say which exact rom fit in that particular phone.

there are flashes for these hardware codes :

A7020a48_S420_160928_TRUE_TH - HW 52
A7020a48_S318_161128_ROW - HW 50, 51, 52, 53
A7020a48_S312_160926_ROW - HW 50, 51, 52
A7020a48_S259_160721_ROW - HW 50, 51, 52
A7020a48_S236_160708_ROW - HW 50, 51, 52
A7020a48_S234_160621_ROW_IN - HW 50, 51, 52
A7020a48_S125_160419_ROW - HW 50
and few lower versions also HW code 50.


p.s. You can try flashing with some of below ROM's, to see if baseband will get back to normal :

A7020a48_S318_161128_ROW - ROW/EU version with FP scanner
A7020a40_S318_161128_ROW(A40) - ROW version without FP scanner
archive pass: lenovo-forums.ru

p.s.2 As already stated before, device may be Chinese version K52e78,
and conversion ROM can be found here : K52e78_china_to_A7020_S318
or
K52t38_USR_ST1610 (with FP scanner)

p.s.3 Useful explanation how to fix imei, wifi/bt/mac addresses, serial number, etc.
How to restore nvram using Maui META 3G and SP META
(use google translate. ALSO - TO BE ABLE TO FIX, when baseband is ok, you will probably need to erase nvram+nvdata partitions)

b.r.
Alex
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Last edited by Brka; 01-27-2019 at 22:02. Reason: added info/rom links
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Old 02-05-2019, 07:40   #52 (permalink)
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Hello,
Sorry for late reply
Pics link :-https://www.4shared.com/zip/c9i-upgo...190128_12.html
Tried firmware
Code:
A7020a40_S318_161128_ROW
A7020a48_S259_160721_ROW
A7020a48_S318_161128_ROW
K52e78_china_to_A7020_S312_v2
But still not fix (unknown baseband)
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Old 02-06-2019, 00:39   #53 (permalink)
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Quote:
Originally Posted by syed tuqeer View Post
Hello,
Sorry for late reply
Pics link :-https://www.4shared.com/zip/c9i-upgo...190128_12.html
Tried firmware
Code:
A7020a40_S318_161128_ROW
A7020a48_S259_160721_ROW
A7020a48_S318_161128_ROW
K52e78_china_to_A7020_S312_v2
But still not fix (unknown baseband)
Okay, can you take a picture of the back sticker,
(imei and other text must be good visible, readable easy),
upload to some image sharing site (like imgur etc.),
and send me in private message.
It's really hard to guess without such info,
and thus, hardly to say which exact rom fit in that particular phone.


b.r.
ALex
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Old 05-17-2019, 09:50   #54 (permalink)
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before convert
Code:
Brand     : Lenovo
ProdName  : k52_e78
ProdModel : Lenovo K52e78
Device    : k52_e78
AndroidVer: 6.0
MTKxCPU   : MT6755
MTKxPRJ   : K52e78_USR_ST1644_5.343.1_1610251523_mp7V2.3_CN

MODEM : k52e78_lwctg_md1 k52e78_c2k_md3
did backup nvram and nv data
flashed K52e78_china_to_A7020_S312
restore nv data and nvram, but no imei ..any help

Last edited by Brka; 05-17-2019 at 22:24. Reason: removed boxes
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Old 05-17-2019, 22:20   #55 (permalink)
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Quote:
Originally Posted by zishhaider View Post

MODEM : k52e78_lwctg_md1 k52e78_c2k_md3

did backup nvram and nv data
flashed K52e78_china_to_A7020_S312
restore nv data and nvram, but no imei ..any help
Lenovo a7020a48 Baseband unknown, ROM

Post #27. Reflash some of those rom's.
If baseband returns, rest is trivial (fixing imei/sn/bt/wifi).

All you need to see is that baseband appears under settings/about phone/software information
If that is okay - rest can be fixed with MauiMeta and SNWriter.


*** EDIT:
Found some alive links :

K52e78_USR_ST1615_5.518.1_1604171517_MP10V1_CN (android 5.1)

K52e78_USR_ST1626_5.106.1_1606230955_mp7V2.3_CN (Android 6)

Flash it and check baseband. If comes back ... you are on a good track.

b.r.
Alex
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Last edited by Brka; 05-17-2019 at 22:34. Reason: added links
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Old 05-19-2019, 11:10   #56 (permalink)
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Quote:
Originally Posted by Brka View Post
Lenovo a7020a48 Baseband unknown, ROM

Post #27. Reflash some of those rom's.
If baseband returns, rest is trivial (fixing imei/sn/bt/wifi).

All you need to see is that baseband appears under settings/about phone/software information
If that is okay - rest can be fixed with MauiMeta and SNWriter.


*** EDIT:
Found some alive links :

K52e78_USR_ST1615_5.518.1_1604171517_MP10V1_CN (android 5.1)

K52e78_USR_ST1626_5.106.1_1606230955_mp7V2.3_CN (Android 6)

Flash it and check baseband. If comes back ... you are on a good track.

b.r.
Alex
Thanks alot Brka , baseband fine, did restore ime with mauimeta, mobile is alive and working normally, thanks again
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Old 05-20-2019, 19:31   #57 (permalink)
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Originally Posted by zishhaider View Post
Thanks alot Brka , baseband fine, did restore ime with mauimeta, mobile is alive and working normally, thanks again
Next thing to try, if you have time to play with that phone,
is to flash that "conversion rom" - K52e78_china_to_A7020_S318

- make backup of BOTH - NVRAM and NVDATA partitions
- flash conversion rom with "Firmware Upgrade" in SPFT
- in SPFT, with CRTL+ALT+V, write memory, write both nvram and nvdata


NVRAM readback address:
- start : 0xD780000
- length: 0x500000

NVDATA readback address:
- start: 0x4BC8000
- length: 0x2000000

when you write nvram or nvdata, no need to input length, only start address.

with this method, baseband, imei and rest should be okay.


b.r.
Alex
Attached Images
File Type: png readback1.png (27.0 KB, 3 views)
File Type: png readback2.png (27.7 KB, 2 views)
File Type: png write.png (29.1 KB, 2 views)
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Old 07-10-2019, 09:55   #58 (permalink)
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Can convert k52t38 or k52t58 model to get FDD-LTE B1/B3 and W-CDMA B1/B5 ?
Both model can get only TDD-LTE B40 for me.
Or it is network hardware alias number.
Or only k52t58 model suit for my country network ? (FDD-LTE B1/B3 and TDD-LTE B40)

Last edited by kaew158; 07-10-2019 at 10:01.
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