lg g4 h815 stuck on logo - Page 5 - GSM-Forum

sebuufu calph · 05-23-2016, 21:23

Its bit disgusting because lg company said its hardware related problem yet lg-h815 stuck on log after trying update which i downloaded using phone its self but be4 phone was working well.......this is how company kidding in peoples money ....sending un help full marshmallow ......i tried every thing to boot up lg h815 but fails ............and i think there is special file for h815....and am ready to buy

Enelyam · 06-30-2016, 07:27

Theres no easy fix for that, if you want to really fix it you will have to replace the emmc chip on the motherboard. Maybe reballing it will do it but best bet is to replace it. Theres a big issue with LG G4s on the emmc solder joints. Since the new policy on no lead solder has been implemented companies are struggling a lot to keep up with that. Just like the Iphone 6 and 6plus that end up losing touch because of a stupid fall of the phone and or bend. Some just simply because of the constant temperature changing on a cell phone. Solder joints will crack, and or oxidize to the point were theyre no longer reliable. Emmc swap is the way to fix it the right way like it or not. Good luck with that m8

jamesjerss · 06-30-2016, 13:30

Its not from emmc , its cpu issue
Replace cpu.

kose2ik · 07-18-2016, 15:42

My SOLUTION was: So as not make things worse initially, and would need to first make a copy of the data. Then use first this metode temporary (get data out off phone) is cool town moderboard with vacumcleaner or compressed air. This CPU take bootloop if outside/surface temperature is over 70* (the internal temperature is much higher than the surface) (air cool town, stable temperature ~30*C (CPU-Z all sensors show: 25*C)) (if temperature rise of metal / material expands (and may be lost tin contact)) (My device doing reboot/bootloop when CPU-Z sensors show: ~35*C)

Service manual LG-H815 page 96 ("9. PCB LAYOUT") is writed problem chip: U2100(MSM8992)(is layered beneath the RAM: U3100 (~3GB)) / U3200(eMMC)(NAND Flash (~32GB)) if device "No Booting/Crash"
So it may be a problem in the three chip (in one of them or in all). While there may be a problem, not a tin or soldering, but inside the the chip or motherboard (However, the heating can improve the contacts (deformed by the heat) (or make worse))

(My device: U3100 is chip: SKhynix LPDDR3 H9CKNNNDATMTDR-NUH FBGA(216ball), 12mm×12mm, 8Bank, 1.8V/1.2V/1.2V, 24Gb, 192Mx32, speed 1866) (My device: U3200is chip: 1516KAE THGBMFG8C4LBAIR VE9536 CHINA)

My chip picture bad work LG G4 H815 LG-H815 goo. gl/photos/HYHWGbS7NQit5Fnk6 and goo. gl/photos/Vt88Do4uxB7gR65X9

temporary (get data out off phone) is cool town moderboard with vacumcleaner or compressed air. This CPU take bootloop if outside/surface temperature is over 70* (the internal temperature is much higher than the surface) (air cool town, stable temperature ~30*C) (if temperature rise of metal / material expands (and may be lost tin contact))

reheat CPU(&MEM) solderballs xda-developers. com/g4/help/diy-h815-usa-variant-hardware-boot-loop-t3311623
or reball youtube. com/watch?v=F02SgZN4L1Y

If you can repire device, then use cool down helper: thermal compound & termal pads

FBGA 216ball package (Adhesive-bonded/poxy) Underfill CTE mismatch is a big problem for flip- chip assembly, the thermo-mechanical stress breaks solder bumps. The solution is to add some underfill between the die and the substrate. Underfill resins are loaded with silica and have CTE around 30ppm / K Technical aspects23
google. com/search?tbm=isch&q=Underfill+pop (without spaces mega . nz / #!SI10marY! C0wMUTDTDp8gNiGaoeRWQ5PvKpwna9okJpo - AS7OO28
ifixit. com/Teardown/LG+G4+Teardown/42705

(This device: U3100 is chip: SKhynix LPDDR3 H9CKNNNDATMTDR-NUH FBGA(216ball), 12mm×12mm, 8Bank, 1.8V/1.2V/1.2V, 24Gb, 192Mx32, speed 1866) (This device: U3200 is chip: 1516KAE THGBMFG8C4LBAIR VE9536 CHINA) ( This device: U2100 is Qualcomm Snapdragon 808 (s808 / MSM8992))

ahmed.t.t · 09-09-2016, 22:49

Quote:

Originally Posted by cwcast

No matter what you do flashing won't bring the phone back, but it can be fixed 100/%.

Dear how can i know if this phone are able to be fix ?

BouRRi_GSM · 10-18-2016, 13:53

Quote:

Originally Posted by ahmed.t.t

Dear how can i know if this phone are able to be fix ?

Nothing can be fixed in one minute. This is just a spam in forum.

nrcmobile2010 · 10-18-2016, 14:09

Hello friends

Before a week i completed LG h815 hang on logo. its not Hardware, its software problem Download the LG flash tool, Download Proper flash file(.kdz), Driver properly install and flash with tool during the flash dilogue box display one or two time read instructions carefully. and Note this Flashing process running and display any dialogue box dont do any thing until flash process completed. your problem will solve 100000%%%%

https://www.4shared.com/zip/mOO6LVli...Tool-2014.html
https://www.4shared.com/zip/WxWrsHrJ..._Firmware.html

above flash tool i used for download firmware and flashing

Enjoy

katitous · 10-18-2016, 21:31

same probleme with lg g4 canadien model h812

teaitiana · 11-30-2016, 18:23

Quote:

Originally Posted by nrcmobile2010

Hello friends

Before a week i completed LG h815 hang on logo. its not Hardware, its software problem Download the LG flash tool, Download Proper flash file(.kdz), Driver properly install and flash with tool during the flash dilogue box display one or two time read instructions carefully. and Note this Flashing process running and display any dialogue box dont do any thing until flash process completed. your problem will solve 100000%%%%

https://www.4shared.com/zip/mOO6LVli...Tool-2014.html
https://www.4shared.com/zip/WxWrsHrJ..._Firmware.html

above flash tool i used for download firmware and flashing

Enjoy

You are right when it issoftware problem but I have same problem and it is hardware and solved by heating cpu

muffinMuncher · 10-01-2017, 13:53

please help me out ... i'm dumb with phones. i have NO IDEA what to do.......

LG G4 H81520a ..... stuck on logo.

afridi4all · 10-12-2017, 11:24

hey i got some problem restart again and again ....some one tell me that its a battery problem ...change the battery its will be okey ....LG mobile has a 70% chance to slove the problem with battery !!!

ch.hameed · 11-16-2017, 13:06

Dear All,

If got this issue .....

1st : Clean charging Port & check,
2nd : If same then replace battery & check,

Then also same it will be hardware problem
its CPU (POP IC)

Just re-hot 10-15 sec CPU some time it will be OK

If Replace CPU also Successes ratio just 50% only

Better Swap Motherboard.

Sevill · 12-14-2017, 11:33

I have a lg h811 and it’s stuck on the logo and won’t do anything can anyone help

kopsa2005 · 02-19-2018, 16:47

Flash with z3x-lg and heat cpu work very well

05-23-2016, 21:23	#61 (permalink)
sebuufu calph Junior Member Join Date: Apr 2013 Posts: 9 Member: 1914050 Status: Offline Sonork: 256 Thanks Meter: 5	Lg g4-h815 Its bit disgusting because lg company said its hardware related problem yet lg-h815 stuck on log after trying update which i downloaded using phone its self but be4 phone was working well.......this is how company kidding in peoples money ....sending un help full marshmallow ......i tried every thing to boot up lg h815 but fails ............and i think there is special file for h815....and am ready to buy

10-18-2016, 14:09	#67 (permalink)
nrcmobile2010 Freak Poster Join Date: May 2012 Posts: 143 Member: 1754544 Status: Offline Sonork: chetan Thanks Meter: 20	Hello friends Before a week i completed LG h815 hang on logo. its not Hardware, its software problem Download the LG flash tool, Download Proper flash file(.kdz), Driver properly install and flash with tool during the flash dilogue box display one or two time read instructions carefully. and Note this Flashing process running and display any dialogue box dont do any thing until flash process completed. your problem will solve 100000%%%% https://www.4shared.com/zip/mOO6LVli...Tool-2014.html https://www.4shared.com/zip/WxWrsHrJ..._Firmware.html above flash tool i used for download firmware and flashing Enjoy Last edited by nrcmobile2010; 10-18-2016 at 14:17.

06-30-2016, 07:27	#62 (permalink)
Enelyam Freak Poster Join Date: Feb 2011 Posts: 156 Member: 1514778 Status: Offline Thanks Meter: 48	Theres no easy fix for that, if you want to really fix it you will have to replace the emmc chip on the motherboard. Maybe reballing it will do it but best bet is to replace it. Theres a big issue with LG G4s on the emmc solder joints. Since the new policy on no lead solder has been implemented companies are struggling a lot to keep up with that. Just like the Iphone 6 and 6plus that end up losing touch because of a stupid fall of the phone and or bend. Some just simply because of the constant temperature changing on a cell phone. Solder joints will crack, and or oxidize to the point were theyre no longer reliable. Emmc swap is the way to fix it the right way like it or not. Good luck with that m8

06-30-2016, 13:30	#63 (permalink)
jamesjerss No Life Poster Join Date: May 2010 Location: India,Tamilnadu-Nagercoil Age: 37 Posts: 5,962 Member: 1314938 Status: Offline Sonork: 100.1672340 Thanks Meter: 5,373	Its not from emmc , its cpu issue Replace cpu.

07-18-2016, 15:42	#64 (permalink)
kose2ik Junior Member Join Date: Jan 2016 Location: Estonia Tallinn Posts: 23 Member: 2517410 Status: Offline Thanks Meter: 6	My SOLUTION was: So as not make things worse initially, and would need to first make a copy of the data. Then use first this metode temporary (get data out off phone) is cool town moderboard with vacumcleaner or compressed air. This CPU take bootloop if outside/surface temperature is over 70* (the internal temperature is much higher than the surface) (air cool town, stable temperature ~30C (CPU-Z all sensors show: 25C)) (if temperature rise of metal / material expands (and may be lost tin contact)) (My device doing reboot/bootloop when CPU-Z sensors show: ~35C) Service manual LG-H815 page 96 ("9. PCB LAYOUT") is writed problem chip: U2100(MSM8992)(is layered beneath the RAM: U3100 (~3GB)) / U3200(eMMC)(NAND Flash (~32GB)) if device "No Booting/Crash" So it may be a problem in the three chip (in one of them or in all). While there may be a problem, not a tin or soldering, but inside the the chip or motherboard (However, the heating can improve the contacts (deformed by the heat) (or make worse)) (My device: U3100 is chip: SKhynix LPDDR3 H9CKNNNDATMTDR-NUH FBGA(216ball), 12mm×12mm, 8Bank, 1.8V/1.2V/1.2V, 24Gb, 192Mx32, speed 1866) (My device: U3200is chip: 1516KAE THGBMFG8C4LBAIR VE9536 CHINA) My chip picture bad work LG G4 H815 LG-H815 goo. gl/photos/HYHWGbS7NQit5Fnk6 and goo. gl/photos/Vt88Do4uxB7gR65X9 temporary (get data out off phone) is cool town moderboard with vacumcleaner or compressed air. This CPU take bootloop if outside/surface temperature is over 70 (the internal temperature is much higher than the surface) (air cool town, stable temperature ~30*C) (if temperature rise of metal / material expands (and may be lost tin contact)) reheat CPU(&MEM) solderballs xda-developers. com/g4/help/diy-h815-usa-variant-hardware-boot-loop-t3311623 or reball youtube. com/watch?v=F02SgZN4L1Y If you can repire device, then use cool down helper: thermal compound & termal pads FBGA 216ball package (Adhesive-bonded/poxy) Underfill CTE mismatch is a big problem for flip- chip assembly, the thermo-mechanical stress breaks solder bumps. The solution is to add some underfill between the die and the substrate. Underfill resins are loaded with silica and have CTE around 30ppm / K Technical aspects23 google. com/search?tbm=isch&q=Underfill+pop (without spaces mega . nz / #!SI10marY! C0wMUTDTDp8gNiGaoeRWQ5PvKpwna9okJpo - AS7OO28 ifixit. com/Teardown/LG+G4+Teardown/42705 (This device: U3100 is chip: SKhynix LPDDR3 H9CKNNNDATMTDR-NUH FBGA(216ball), 12mm×12mm, 8Bank, 1.8V/1.2V/1.2V, 24Gb, 192Mx32, speed 1866) (This device: U3200 is chip: 1516KAE THGBMFG8C4LBAIR VE9536 CHINA) ( This device: U2100 is Qualcomm Snapdragon 808 (s808 / MSM8992))

10-18-2016, 21:31	#68 (permalink)
katitous No Life Poster Join Date: Jul 2011 Location: montreal Posts: 1,048 Member: 1612872 Status: Offline Sonork: 1613495 Thanks Meter: 178	same probleme with lg g4 canadien model h812

10-01-2017, 13:53	#70 (permalink)
muffinMuncher Junior Member Join Date: Oct 2017 Posts: 1 Member: 2763419 Status: Offline Thanks Meter: 0	please help me out ... i'm dumb with phones. i have NO IDEA what to do....... LG G4 H81520a ..... stuck on logo.

10-12-2017, 11:24	#71 (permalink)
afridi4all Freak Poster Join Date: Jun 2007 Location: pakistan Posts: 235 Member: 525998 Status: Offline Thanks Meter: 57	hey i got some problem restart again and again ....some one tell me that its a battery problem ...change the battery its will be okey ....LG mobile has a 70% chance to slove the problem with battery !!!

11-16-2017, 13:06	#72 (permalink)
ch.hameed Junior Member Join Date: Sep 2017 Location: India Now Working in Kuwait Age: 45 Posts: 7 Member: 2761097 Status: Offline Thanks Meter: 0	Dear All, If got this issue ..... 1st : Clean charging Port & check, 2nd : If same then replace battery & check, Then also same it will be hardware problem its CPU (POP IC) Just re-hot 10-15 sec CPU some time it will be OK If Replace CPU also Successes ratio just 50% only Better Swap Motherboard.

12-14-2017, 11:33	#73 (permalink)
Sevill Junior Member Join Date: Dec 2017 Posts: 1 Member: 2789012 Status: Offline Thanks Meter: 0	I have a lg h811 and it’s stuck on the logo and won’t do anything can anyone help

02-19-2018, 16:47	#74 (permalink)
kopsa2005 No Life Poster Join Date: Feb 2006 Posts: 586 Member: 236460 Status: Offline Thanks Meter: 61	Flash with z3x-lg and heat cpu work very well