This is the major issue for G4 serial number starting with 505-509, as the production line there seems defected, if you send it to LG Service centre and they will replace your Mainboard (which is dissatisfied me)
Last Update: 14/01/2015 - LG refused warranty repair due to the device being rooted
Solution (Clean Software): RMA to LG or place of purchase
Solution (Modified Software): Find some paper to weigh down
Solution (General): Don't buy LG's Hardware - quality control is questionable at best
Although some people have reported getting some functionality back, no such luck for myself and majority of others.
What I didn't try;
-Flashing MM20b - any method
-Flashing MM20c - any method
in fact, not even checked that they exists(no phone, lg has it!)
Don't think it was about when I was trying to recover (?) - I also highly doubt that flashing these will help you![]()
Click the show content button to see what was tried and updates on the RMA. Pre-warning, this is my journey starting 12th December and is all condensed to 1 post.
Attempted Fixes:12/12/2015
+1
12 hours ago while sending a text my phone restarted. I logged back in to write the text again, it restarted then bootlooped.
H815EU
unlocked bootloader
TWRP
Root
S/N 506xxx
1) Tried using LG bridge
2) Flashtool 2014 - Europe OPEN H81510D.kdz
-it says its updating to marshmallow (succeeds)
-then sits at LG boot screen without looping
3) LGUP
-said that it couldn't connect to server
-clicked ok
-clicked retry
-says S/W update in progress
-stopped due to an error
-This is on my main PC, had issues with Flashtool before, will check on my laptop and feed back
-Fails on 9%
4) Longshot
-Only see's my device when I enter download mode
-Says my device is unknown so won't do anything with it
-Restarted Computer
-Wants a .tot not .kdz, contrary to the guide posted - out my depth, whats the difference between a kdz and a tot?
-Click on upgrade
-Chose Europe OPEN H81510D.kdz
-Close and reopen LGUP
-Making sure Refurbish is chosen (kdz should still be active file)
-Click Start
-80% Reboots, Reboots, reboots, reboots...
-100% "Click here to continue" on computer
-Reboot
-Bootloop
5) LGUP
-now I assume that I'm back on lp, moving back to step 2 Flashtool 2014
-Connection to server failed
-ignored
-seconds later it starts flashing
-Bootloop
-Same as 3 above, but with MM H81520a_00.kdz
-Complete
-Bootloop
-repeated to go back to Europe OPEN H81510D.kdz
Updates12/12/2015
-I assume that in the uk the MM update was rolled out for the carrier free G4 and my phone chewed it up and then choked on it
-If someone figures it out let me know, otherwise its time for a new phone :/
-apparently you can use adb while LGUP is connected, might try it at some point, had enough for a couple hours
15/12/2015
GiffGff quickly give me a reference to send the phone back to them
@nashant recommended LG customer services (for those of us in the UK). Straight to LG, better option than via Giffgaff I feel.
0344 847 5454
http://www.lg.com/uk/support
Customer support were brilliant DPD out tomorrow to collect my phone. I will update as necessary. Take down your imei before sending it off17/12/2015
DPD have collected my mobile. Fingers crossed!22/12/2015
At the repair centre since 18/12/15 awaiting repair04/01/2016
LG phones helpline is really busy - offering callbacks. I got one, they lost my phone :/05/01/2016
Turns out LG are that busy with returned phones at the moment, warranty repairs are being sent to none warranty repair centres - mine is at SV (?) - This is why they couldn't find my phone. Make sure that you take down your imei number before you send it off, seems this is how they track phones internally, not by your reference number. I am assured that SV (?) are going to do a fantastic job and I should get my phone back next Monday.11/01/2016
LG haven't had an update from the repair centre... they are chasing it and will get back to me by Weds/Thursday.
Interesting part of the conversation, the person on the phone had said to me
Agent "Do you know its gone to the out of warranty repair centre.."
Me "Yes, I was told that it was so busy that they had to but I would get same quality repair"
I am hoping this isn't because of an unlocked bootloader, especially with the issue being duff hardware. Although this hasn't even been mentioned so far.... Starting to worry now. My house is full of LG electronics but I might not be using them again... !14/01/2016
LG have refused the repair
I now have a fairly expensive paperweight and will never buy anything from LG electronics again, that annoyed I might even get rid of the tv and home cinema, seems a good time to upgrade to 4k anyway
Been bouncing back to Giffgaff all day re the consumer rights act in England and the EU directive. They seem to think as a retailer that they have no responsibility.
Which is a UK Consumer champion with extended rights, it discusses the Consumer Rights Act at that link.
"If you discover the fault within the first six months from delivery, it is presumed to have been there from the time of delivery - unless the retailer can prove otherwise."
I am Hopeful that everything else will be smooth. +rep to @nashant for the recommendation re LG customer services.
dentralp
They only offered to repair my phone, which would take up to 14 days apparentlyJust called LG. Didn't get any answer about details of what's happening, but they're sending me out a replacement this week. So no complaints here!
Where are you? Maybe UK customer service is better. Does help that we have a 1 year manufacturer's warranty over here, I guess. H815AT bought from Three Mobile in May. Maybe it helped that I mentioned that there seem to have been quite a few people who had this issue crop up towards the end of last week. Seems like quite a coincidence.They only offered to repair my phone, which would take up to 14 days apparently
Yeah, that's the one. They were very helpful.Have you got the contact details? Sounds better than going through my place of purchase.
Was it the 0344 847 5454 number?
http://www.lg.com/uk/support