GSM Shop GSM Shop

Welcome to the GSM-Forum forums.

You are currently viewing our boards as a guest which gives you limited access to view most discussions and access our other features.
Only registered members may post questions, contact other members or search our database of over 8 million posts.

Registration is fast, simple and absolutely free so please - Click to REGISTER!

If you have any problems with the registration process or your account login, please contact contact us .

Go Back   GSM-Forum > GSM & CDMA Phones / Tablets Software & Hardware Area > LG > LG Android based phones

LG Android based phones General LG Android phones discussion, firmwares, solution, root, help

LinkBack Thread Tools Display Modes
Old 09-19-2022, 23:47   #1 (permalink)
Junior Member
Join Date: Sep 2022
Location: Texas
Posts: 2
Member: 3020438
Status: Offline
Thanks Meter: 0
IMPL lock after cross-flash mess

I have a dual-SIM LG G710EAW phone. When I came to the US I flashed the Tmobile firmware via LGUP. I did this because T-Mobile kept kicking off my phone off their network, and assumed this would help T-Mobile "recognize" the phone.

After flashing, the phone was totally bricked - no power, no sign of life except for EDL. However, in EDL mode I took a dump of all the partitions with T-Mobile firmware still on it.

After many months I was able to revive the device by flashing EAW firmware in EDL mode, simply by trying a bunch of things and learning.

When the phone booted, it showed no S/N and no IMEIs.

I went ahead and flashed the modemst1, modemst2, fsg partitions from the T-Mobile backup from earlier.

The IMEIs showed up for both the SIMs but the 2nd SIM wasn't being detected (emergency calls only) no matter what.

Ignoring that for the time being, then, I edited the FTM image to add my serial number (from the box) and that gave me the S/N but WiFi stopped working.

At this point, I re-flashed EAW to try to fix, and booted to "This phone is permanently locked" and when I put a SIM card, it goes to "No Service" immediately.

The "Network settings" option is unavailable in settings. The IMEIs and S/N is back to 0 and blank, respectively.

When I try to flash in LGUP, it says "Phone is IMPL lock state".

I have the IMEI numbers and S/N from the box, but I have no idea how to proceed to restore these to the phone along with full cellular connectivity.

I've read the IMPL lock is stored in EFS, but I have no idea how to access or reset it.

I do have root via Magisk.

How do I proceed from here?
Attached Images
File Type: jpg IMG_20220919_165201.jpg (163.7 KB, 6 views)

Last edited by urover; 09-19-2022 at 23:54.
  Reply With Quote
Old 09-25-2022, 18:49   #2 (permalink)
Junior Member
Join Date: Sep 2022
Location: Texas
Posts: 2
Member: 3020438
Status: Offline
Thanks Meter: 0
Can someone help?
  Reply With Quote
Old 09-26-2022, 12:18   #3 (permalink)
No Life Poster
bhiret's Avatar
Join Date: May 2010
Location: FLAT EARTH
Posts: 1,238
Member: 1295624
Status: Offline
Thanks Meter: 151
Next time dont play with lg phones
  Reply With Quote


Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


All times are GMT +1. The time now is 10:48.

Powered by Searchlight © 2022 Axivo Inc.
vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2022 DragonByte Technologies Ltd.
- GSM Hosting Ltd. - 1999-2017 -
Page generated in 0.08679 seconds with 8 queries