Hovatek Forum MOBILE Android [Please help] How To Unlock Bootloader SC9850KL Oreo 8.1.0 Go Edition
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[Please help] How To Unlock Bootloader SC9850KL Oreo 8.1.0 Go Edition

[Please help] How To Unlock Bootloader SC9850KL Oreo 8.1.0 Go Edition

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Rahmatyus14
Rahmatyus14
Rahmatyus14
Enthusiastic Member
8
13-03-2019, 02:49 PM
#1



Hi!
I need your help to unlock the bootloader of my new phone.
Device Name : Advan S50 4G
Model : i5g
Chipset : SC9850kl
OS : Oreo 8.1.0.

I tried these commands:
1. fastboot oem unlock
2. fastboot flashing unlock
But none of those commands work.
The numb 1 failed: cmd unknown
The numb 2 failed: not implement
X3non
X3non
X3non
Recognized Contributor
22,062
13-03-2019, 04:30 PM
#2
(13-03-2019, 02:49 PM)Rahmatyus14 Hi!
I need your help to unlock the bootloader of my new phone.
...
1. fastboot oem unlock
2. fastboot flashing unlock
But none of those commands work.
The numb 1 failed: cmd unknown
The numb 2 failed: not implement

if none of the two commands work on your device, its likely your phone requires a code or key or unlock file for unlocking. you can check in with the manufacturer of the device if the device is eliglible for unlocking bootloader and the right command for unlocking bootloader

if you have the firmware for your model, you can try using uboot from the firmware & step 3 @ https://www.hovatek.com/forum/thread-21403.html
to check for any hidden fastboot commands
Rahmatyus14
Rahmatyus14
Rahmatyus14
Enthusiastic Member
8
03-04-2019, 12:08 PM
#3
(13-03-2019, 04:30 PM)X3non
(13-03-2019, 02:49 PM)Rahmatyus14 Hi!
I need your help to unlock the bootloader of my new phone.
...
1. fastboot oem unlock
2. fastboot flashing unlock
But none of those commands work.
The numb 1 failed: cmd unknown
The numb 2 failed: not implement

if none of the two commands work on your device, its likely your phone requires a code or key or unlock file for unlocking. you can check in with the manufacturer of the device if the device is eliglible for unlocking bootloader and the right command for unlocking bootloader

if you have the firmware for your model, you can try using uboot from the firmware & step 3 @ https://www.hovatek.com/forum/thread-21403.html
to check for any hidden fastboot commands

How to find a string from .bin file? Uboot.bin file. I cant find any string even using notepad++
shankar1790
shankar1790
shankar1790
Senior Member
474
03-04-2019, 02:21 PM
#4
(03-04-2019, 12:08 PM)Rahmatyus14
(13-03-2019, 04:30 PM)X3non
(13-03-2019, 02:49 PM)Rahmatyus14 Hi!
I need your help to unlock the bootloader of my new phone.
...
1. fastboot oem unlock
2. fastboot flashing unlock
But none of those commands work.
The numb 1 failed: cmd unknown
The numb 2 failed: not implement

if none of the two commands work on your device, its likely your phone requires a code or key or unlock file for unlocking. you can check in with the manufacturer of the device if the device is eliglible for unlocking bootloader and the right command for unlocking bootloader

if you have the firmware for your model, you can try using uboot from the firmware & step 3 @ https://www.hovatek.com/forum/thread-21403.html
to check for any hidden fastboot commands

How to find a string from .bin file? Uboot.bin file. I cant find any string even using notepad++
Rename uboot.bin to uboot.img by directly changing extension then try above commands in posted link.
I hope you read comments carefully becuase you are trying in notepad which is not possible you can try in hex editor (need advance knowledge ) so try method in posted link and let us know the outcome
This post was last modified: 03-04-2019, 02:27 PM by shankar1790.
X3non
X3non
X3non
Recognized Contributor
22,062
03-04-2019, 03:09 PM
#5



(03-04-2019, 12:08 PM)Rahmatyus14 How to find a string from .bin file? Uboot.bin file. I cant find any string even using notepad++

Step 3: Read the Bootloader file @ https://www.hovatek.com/forum/thread-21403.html
mind you, this is not guaranteed to work on your device
Rahmatyus14
Rahmatyus14
Rahmatyus14
Enthusiastic Member
8
04-04-2019, 12:50 PM
#6
By the way, is there any way to edit and change the update.zip files from an official update file?
Or can we flash magisk from a stock recovery? Can we edit files or signature from magisk to be able to flash it via stock recovery?
shankar1790
shankar1790
shankar1790
Senior Member
474
04-04-2019, 01:05 PM
#7
(04-04-2019, 12:50 PM)Rahmatyus14 By the way, is there any way to edit and change the update.zip files from an official update file?
Or can we flash magisk from a stock recovery? Can we edit files or signature from magisk to be able to flash it via stock recovery?
In stock recovery, not possible .
You can easily edit your update.zip but changing anything in zip altered oem signature key .so you can't be able to sideload /install it in stock recovery.
This post was last modified: 04-04-2019, 01:06 PM by shankar1790.
Rahmatyus14
Rahmatyus14
Rahmatyus14
Enthusiastic Member
8
04-04-2019, 01:22 PM
#8
I got this

Code:

ANDROID!
bad boot image header, give up boot!!!!
kernel image should not be zero!
ramdisk image size should not be zero
os version should not be zero!
config_os_version failed
read dt image table header fail
Cannot validate Device Tree Table
malloc size %d for dt header fail
read dt image table and entries header fail
Getting device tree address failed
dt entry size read error!
dtbo
read dtbo fail
malloc size %d for dtbo fail
%s kernel read error!
load dt error!
%s ramdisk read error!
%s, sprdisk mode failure!
Fatal Error,get_dev mmc failed!
verify get partition %s info failed!
WARNNING: LOCK FLAG IS : UNLOCK, SKIP VERIFY!!!
pass_chip_uid_to_tos()... sizeof(blocks)=%d
blks:0x%08x 0x%08x, result: 0x%x
lcd start init time:%dms
logo
uboot consume time:%dms, lcd init consume:%dms, backlight on time:%dms
pm_sys
cali
autotest
special
apwdgreboot
unknowreboot
   INFO: LOCK FLAG IS : UNLOCK!!!
charger
engtest
alarm
factorytest
fdt_chosen_bootargs_append: %s
fdt_chosen_bootargs_append: cann't find chosen
bootargs len:%d overflow (MAX_BOOTARG_LEN-1)
bootargs len:%d overflow MAX_BOOTARG_LEN
androidboot.verifiedbootstate=green
androidboot.verifiedbootstate=yellow
androidboot.verifiedbootstate=orange
androidboot.verifiedbootstate=red
androidboot.flash.locked=0
androidboot.flash.locked=1
sprd,decoup
cproc-use-decoup
cproc-use-decoup-v1
/reserved-memory
fdt_reserved_mem_multimedia_parse: cann't find mm_reserved
multimediabuffer
tos-mem
audio-mem
overlaybuffer
fdt_chosen_bootargs_replace: %s
fdt_chosen_bootargs_replace: cann't find chosen
fdt_chosen_bootargs_replace: cann't find str %s!
regulator-name
vddarm0
vddarm0 not found
vddarm1
device_type
cannot find bullhill cpu
cpu0-supply
dual-phase-supply
cpu1-supply
pmic2731_wa
sprd,iq-mem
compatible
del iq reserved mem failed
cann't find reserved-memory node
cp-modem
cann't find cp-modem@xxxx node
sprd,cpdbg-size
cannot find reg prop in cp-modem@xxxx node
modem=shutdown
console=ttyS1
console=null
lcd_id=ID
lcd_base=
lcd_size=
%dx%d
 androidboot.serialno=%s
kmemleak=on
 sysdump_magic=%lx
sysdump-uboot
ERROR: cannot set sysdump-uboot node's reg property(addr)!
ERROR: cannot set sysdump-uboot node's reg property(size)!
 adc_cal=%d,%d
 fgu_cal=%d,%d,%d
 mem_cs=%d, mem_cs0_sz=%08x
failed to append ddr training data args bootargs
failed to reserved cs0 ddr training data space
failed to reserved cs1 ddr training data space
ERROR: device tree must have /memory node %s.
ERROR: cannot set /memory node's reg property(addr)!
ERROR: cannot set /memory node's reg property(size)!
bootargs is null
pathcopy string copy failed!
loglevel
read miscdata loglevel data error.
enable
loglevel=7
set logleve = 7 failed!
uart calibrate detecting
usb calibrate configuration timeout
caliberate : what got from host total %d is
0x%x
func: %s line: %d caliberate failed
autotest=1
calibration=%d,%d,130
checked command from pc , and return value = %x
USB SERIAL CONFIGED
func: %s line %d usb trans with error %d
func: %s readly read %d
return ret %d
usb_driver_init error
usb_serial_init error
usb calibrate configuration timeout,%lu,%lu,%lu
usb calibrate port open timeout%lu,%lu,%lu
USB SERIAL PORT OPENED
usb read timeout
caliberate:what got from host total %d is
preparing reply buf
in function prepare_reply_buf, buf = NULL
in function prepare_reply_buf: Buffer malloc failed
%s caliberate_mode: %x
write efuse failed and error code = %d
calibration=%d,%d,146
/adc.bin
read miscdata adc data error.
%s: cannot read prodnv /adb.bin.
heap@4
set fastboot buffer error
%s%s
FAIL
OKAY
Flashing Lock Flag is locked. Please unlock it first!
 ret is %04x
lcs is %d
data too large
DATA%08x
SOCID
socid is:
subcmd is null.
get_identifier_token
Identifier token:
unknown cmd.
 get backup partition name fail
Write nv img fail
write %s size 0x%llx fail
image write with backup error!
image write error!
bad boot image header
kernel image should not be zero
ramdisk size error
unlock
Not implemet.
Not implement.
unlock_critical
get_unlock_ability
get_unlock_bootloader_nonce
Bootloader can not been locked repeatly.
Lock bootloader fail.
   Info:Lock bootloader success!
Lock bootloader successfully!
unlock_bootloader
Bootloader can not been unlocked repeatly.
Please firstly execute <fastboot oem get_identifier_token>
Unlock bootloader fail.
   Warning: Unlock device may erase user data.
   Press volume down button to confirm that.
   Press volume up button to cancel.
   Info:user cancelled!
Info:user cancel unlock bootloader!
Erase userdata fail.
   Info:Unlock bootloader success!
Info:Unlock bootloader success!
   Begin to erase user data...
------------------------------------------------------------------------
   Warning:RMA will change hardware status and unrecoverable, also will make some secure data unaccessible!
   Do you confirm that you are developer and need this operation really?
   Press button 'Volumn-Down' for 'No'.
   Press button 'Volumn-Up' for 'Yes'.
   The operation will be cancelled automatically after 20 seconds.
------------------------------------------------------------------------
user cancelled
time out
   fastboot mode
getvar:
download:
1.0
flash:
erase:
powerdown
continue
reboot-bootloader
flashing
oem
getlcs
setrma
getsocid
unknown reason
unknown command
misc
partition <misc> read error, can not get recovery message
write partition <misc> fail
boot-recovery
update-radio
/alarm_flag
/poweron_timeinmillis
USB SERIAL CONFIGED failed
Waiting For USB SERIAL PORT OPEN ... ...
%s vbat_vol:%d,comp_vbat:%d
Pressed key: %d

I tried this 
fastboot oem get_identifier_token
But the result causing the fastboot mode is undetected so I need to reboot to fastboot mode again. Is anything goes wrong?
This post was last modified: 04-04-2019, 06:42 PM by X3non.
Rahmatyus14
Rahmatyus14
Rahmatyus14
Enthusiastic Member
8
04-04-2019, 01:46 PM
#9
This command:
fastboot flashing unlock
Give me a result : not implement
Because I need to do a spesific command first, right?
The phone seems to unlockable, right?
The only problem is that the manufacturer of this device isn't tell anything or even guide me the proper method to UBL this device. Everytime I contacted them, they keeps asking me "do you wanted to unlock the bootloader of you device?". But when I answered "yes", they never reply again.
X3non
X3non
X3non
Recognized Contributor
22,062
04-04-2019, 06:47 PM
#10



(04-04-2019, 01:46 PM)Rahmatyus14 This command:
fastboot flashing unlock
Give me a result : not implement
Because I need to do a spesific command first, right?
The phone seems to unlockable, right?
The only problem is that the manufacturer of this device isn't tell anything or even guide me the proper method to UBL this device. Everytime I contacted them, they keeps asking me "do you wanted to unlock the bootloader of you device?". But when I answered "yes", they never reply again.

did you enabled oem-unlock in settings before trying the command?
also you should note not all OEMs provide support for unlocking their devices, infact most don't
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