Introduction

The LG G4 is all about luxury, with its touted camera and genuine leather rear case options. But will LG afford us the luxury of repair? Join us as we tear down the G4 and shoot it full of X-rays—courtesy of our friends at Creative Electron.

Loving the X-ray imagery? Don't miss our Apple Watch X-ray teardown.

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This teardown is not a repair guide. To repair your LG G4, use our service manual.

The LG G4 isn't powered by g-forces or guinea pigs; here's what it's actually packing: 5.5" IPS "Quantum" display with 2560 x 1440 resolution (538 ppi) 6-core, 1.8 GHz, 64-bit Qualcomm Snapdragon 808 processor
  • The LG G4 isn't powered by g-forces or guinea pigs; here's what it's actually packing:

    • 5.5" IPS "Quantum" display with 2560 x 1440 resolution (538 ppi)

    • 6-core, 1.8 GHz, 64-bit Qualcomm Snapdragon 808 processor

    • 3 GB RAM

    • 32 GB on-board storage, expandable up to an additional 2 TB via microSD card

    • 16 MP, f/1.8 rear camera with OIS and laser-guided autofocus, and 8 MP f/2.0 front camera

    • 802.11 a/b/g/n/ac wi-fi, Bluetooth 4.1 BLE, and NFC connectivity

    • Android 5.1 Lollipop

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No tools required here! The G4 includes a handy notch for easy back panel removal. As far as repairability goes, this is looking promising. It warms our hearts (and, pleasantly, not our iOpeners) to see such a simple opening procedure—especially compared to the adhesive-laden opening numbers in many phones.
  • No tools required here! The G4 includes a handy notch for easy back panel removal.

    • As far as repairability goes, this is looking promising.

  • It warms our hearts (and, pleasantly, not our iOpeners) to see such a simple opening procedure—especially compared to the adhesive-laden opening numbers in many phones.

  • We don't need X-ray vision to see that this battery is user-replaceable.

    • But X-rays are just so much fun!

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The G4's 3.85 V lithium-ion battery is rated for a minimum of 11.2 Wh. While LG's marketing department doesn't make any specific claims about battery life, they've made sure to let us know that the 3,000 mAh battery lasts and lasts. The Galaxy S6 ranks close behind at 3.85 V, 9.82 Wh. The iPhone 6 features a 3.82 V battery with an energy rating of 6.91 Wh.
  • The G4's 3.85 V lithium-ion battery is rated for a minimum of 11.2 Wh. While LG's marketing department doesn't make any specific claims about battery life, they've made sure to let us know that the 3,000 mAh battery lasts and lasts.

    • The Galaxy S6 ranks close behind at 3.85 V, 9.82 Wh.

    • The iPhone 6 features a 3.82 V battery with an energy rating of 6.91 Wh.

  • Despite the impressive specs, we think the most exciting feature of this battery is the fact that it's easily removable.

Phone does not on

s.manoj kumar - Reply

L G mobile phone

s.manoj kumar - Reply

It may look like an ordinary slab of plastic, but this, dear friends, is what freedom looks like! The wee plastic tabs on the rear case allow it to snap off with ease—a simple technology that we thought was as lost to us as Roman concrete. But wait, there's more! We see some contacts peeking out of the plastic.
  • It may look like an ordinary slab of plastic, but this, dear friends, is what freedom looks like! The wee plastic tabs on the rear case allow it to snap off with ease—a simple technology that we thought was as lost to us as Roman concrete.

  • But wait, there's more! We see some contacts peeking out of the plastic.

  • A few X-rays later, we uncover the camouflaged NFC antenna, not a wireless charging coil.

    • For those of you hoping to use your Qi charger right out of the box, this G4 won't support wireless charging without a specialty case.

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We got all the way to the midframe before needing to so much as open our tool bag. First out of the bag is our Pro Tech Screwdriver Set with the handy, standard Phillips #0. Next, we grab an opening pick and tease up the midframe, revealing the heart of the G4. We take a quick note of the G4's model number—LG-H811— before rending it asunder moving forward.
  • We got all the way to the midframe before needing to so much as open our tool bag. First out of the bag is our Pro Tech Screwdriver Set with the handy, standard Phillips #0.

  • Next, we grab an opening pick and tease up the midframe, revealing the heart of the G4.

  • We take a quick note of the G4's model number—LG-H811— before rending it asunder moving forward.

  • The ease of opening and simplicity of components remind us of the good old days of easily repaired Android phones. The G4 seems to be a great showcase for slim luxury and repair friendliness.

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Deck the Halls
With tools and Fix Kits
The 8 MP selfie cam is no match for our spudger. Most notable about this little camera is the somewhat controversial smoothing effect, which seems to be helpful in common shooting situations—if you don't need sharp details.
  • The 8 MP selfie cam is no match for our spudger.

  • Most notable about this little camera is the somewhat controversial smoothing effect, which seems to be helpful in common shooting situations—if you don't need sharp details.

  • While it is not visible to us, the G4 is also supposed to have an ultra-thin 0.1 mm blue IR filter to block out infrared interference, giving photos a more "natural" look.

    • LG is trying to help out its Instagram fans: better photos, and you still get to say #nofilter. Technically.

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We pull out the G4's motherboard and get a better view of its silicon. Check out these ICs: Samsung K3QF6F60AM-QGCF 3 GB LPDDR3 RAM The Hexa-Core, 1.8 GHz Qualcomm Snapdragon 808 SOC is layered beneath the RAM.
  • We pull out the G4's motherboard and get a better view of its silicon. Check out these ICs:

Como lo compro

juango5312 - Reply

Thanks for this great document. I was looking into how to fix the WIFI and Bluetooth. My older G4 has problem to turn on WIFI nd bluetooth, I finally get to see the parts oday by using your chart.......but I do not know what I can do......should I try to bake the mother board???

jenyenchen - Reply

We're could I get one for 120 us

Glory boy elijah - Reply

Rear-facing chips:
  • Rear-facing chips:

    • Avago ACPM-7717 Multiband Multimode Power Amplifier

    • Qualcomm WCD9330 Audio Codec

    • SlimPort ANX7816 Ultra-HD Transmitter

    • Qualcomm PM8994 Power Management IC

    • NXP 47883 NFC Controller

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Going back to the rest of the G4, we lift out the 16 MP rear-facing camera for a closer look. The camera sports a 1/2.6" image sensor as well as laser autofocus and optical image stabilization. The main focus of discussion, however, has been the camera's f/1.8 aperture.
  • Going back to the rest of the G4, we lift out the 16 MP rear-facing camera for a closer look.

  • The camera sports a 1/2.6" image sensor as well as laser autofocus and optical image stabilization. The main focus of discussion, however, has been the camera's f/1.8 aperture.

    • LG has also added some advanced features—including exposure compensation, RAW image capture, and other settings—which can be manually adjusted.

  • From this end of the G4, we're also able to catch a glimpse of its IR blaster (to the left of the microphone hole).

    • Let's just hope that using this phone as a remote doesn't doom it to the couch cushions forever...

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The complexity of the rear-facing camera and its image stabilization is even more apparent under X-ray. That frame! Those chips! The wee camera next door is the front-facing camera; just a simple lens and image sensor, with no OIS mechanism. And on its side, the rear-facing cam kinda looks like Nessie. Conspiracy? Probably not.
  • The complexity of the rear-facing camera and its image stabilization is even more apparent under X-ray. That frame! Those chips!

  • The wee camera next door is the front-facing camera; just a simple lens and image sensor, with no OIS mechanism.

  • And on its side, the rear-facing cam kinda looks like Nessie. Conspiracy? Probably not.

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We turn our attention to the headphone jack and tweeze it out of the chassis. Our teardown engineers note that the jack has cool spring contacts, which make for easy replacement.
  • We turn our attention to the headphone jack and tweeze it out of the chassis.

    • Our teardown engineers note that the jack has cool spring contacts, which make for easy replacement.

    • It's a good day when the headphone jack is easier to replace than most components in your headphones, er, earpods.

  • This audio jack is footloose and fancy-free.

    • Spring contacts are a great way to connect components; no soldering, no fuss, and a snap to replace.

  • The darkest portions of the X-ray are the metal of the contacts, which carry power and data to and from the audio jack to the motherboard. The rest of the gray is simply the plastic housing.

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Another spring-contact-applied component: the vibrator! The vibrator appears to be a coin vibration motor. The two oblong 'O' shapes are coils of wire, and the dark anvil shape is a weight that spins, making the motor shake. From the side, the spring contacts get more volume, and you can even see the individual wire filaments in the coils. Neat.
  • Another spring-contact-applied component: the vibrator!

  • The vibrator appears to be a coin vibration motor. The two oblong 'O' shapes are coils of wire, and the dark anvil shape is a weight that spins, making the motor shake.

  • From the side, the spring contacts get more volume, and you can even see the individual wire filaments in the coils. Neat.

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LG G4 Repairability Score: 8 out of 10 (10 is easiest to repair). Rear panel and battery can be removed with no tools. Many components are modular and can be replaced independently.
  • LG G4 Repairability Score: 8 out of 10 (10 is easiest to repair).

    • Rear panel and battery can be removed with no tools.

    • Many components are modular and can be replaced independently.

    • Standard Phillips #0 screws means a driver is easy to find.

    • Fused display assembly—glass and LCD will need to be replaced together if one or the other breaks.

  • And lastly, we'd like to thank our friends at Creative Electron for their equipment and expertise!

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Geoff Wacker

Member since: 09/30/2013

62,417 Reputation

125 Guides authored

67 Comments

These X-Ray tear downs are really interesting. Hope to see more in the future!

Robert - Reply

It must kill LG to have to use Samsung RAM chips.

Shawn Latin - Reply

Corporations do not have emotions.

Almost everybody buys from anybody. Samsung sells parts to Apple, etc, etc.

It's all about maximising profit. Do that and nobody cares where the parts come from (unless your corporation can do it cheaper itself.)

Mike Reid -

Awesome! I loved this X-Ray feature.

Marcel Cintra - Reply

Looks like the external speaker is also connected with spring contacts! I've had notoriously bad luck with external speakers, so this is awesome!

David S - Reply

Anyone knows where I can purchase the rear camera module? My daughter shattered the glass.

Thanks in advance.

TheDoctor Who - Reply

Any info on sensor chips?

hunter - Reply

Hi. The plastic trim around the screen is all attached is it? There's no way of replacing it without replacing the whole screen?

Paul Garner - Reply

you could probably use a heat gun to seperate the glass from the from i know you buy just the frame on amazon

aaron brogan -

Excellent guide, The place I work will not allow cameras on the work site, will the phone still work with the cameras removed completely?

taylorraymond - Reply

Dude...Just cover the cameras up and call it a day (And disable the camera app)

niccotaglia -

There are a LOT of reports of the wireless charging breaking after several weeks to a month of use. As in, the Qi wireless charging ability completely dies. This is unfortunate!

On their website IDT is no recommending the 9025A and has a newer model, the 9025AC. Are these 2 facts related? Will LG upgrade newer ones to this chip?

EnjoyLG4 - Reply

Hi. My unit was manufactured in may 2015 (as per the serial number found on the retail box) and found out that units manufactured before sept. 2015 has a design flaw. Mine was purchased in june 2015. started to boot loop in oct 25 2015. Returned it to LG. their assessment was for mother board replacement.

http://forum.xda-developers.com/g4/help/...

chriztoph3r - Reply

did u have ur motherboard replaced ? and is it working fine now with new motherboard?

Ashwani Bhat -

How can I change the bottom microphone? It stopped working/something might be clogged in it, and it doesn't appear to be in this teardown. Please help!

Emmet Spiegel - Reply

Did you find any sulotion? I have the problem now. Thank you if you help me.

houman -

I'm also having this issue after about a year of use. Is it possible to access the port without having to take off the motherboard?

Myles O'Connor -

Hi all. My G4 H815 was manufactured in June 2015. Mine was purchased on 24 July 2015. started to boot loop on 19 November 2015. Returned it to LG the next morning and just got my motherboard replaced and received a November 2015 unit today. The technician does not know the problem of the unit when asked.

Walao Eh - Reply

did you get the motherboard replaced ? and is it working fine with new motherboard now

Ashwani Bhat -

My husband dropped his brand new LG G4 in salt water. The motherboard burned. Can it be replaced?

Hendrik van Zyl - Reply

My LG G4 is going through a "Bootloop" I wanted to know if the internal memory could be removed to retrieve the inner contents. That or just fixing the Bootloop seeing how LG admits to this being a defect in most device's in the components of the device.

Edgar - Reply

how can i boost antenna main signal strength. phone showes no signal and iphone has 4 bars

Toby Andrus -

Same thing happen to my unit, bought in July 2015. Started boot loop and died off subsequently last week. Return to LG and had motherboard replaced.

Ralph K - Reply

is your g4 working fine with the new motherboard or has it faced the bootloop issue again

Ashwani Bhat -

LG knows of the boot loop issue. It's seems to be a batch where the processor becomes loose from the motherboard. Heat gun and sticking freezer are quick very short term solutions. LG will replace phone or board no real questions asked.

Jon Hartsock -

Wait. H811? I have an unlocked G4 and it says H815

niccotaglia - Reply

Any ideas on how to fix the bootloop issue?

aliceleemail - Reply

It can't be fixed as it's not a software issue, it's a hardware issue. The only way to fix it is have LG replace it unfortunately :(

Craig -

Can be fixed short term by puttin freezer

Jon Hartsock -

Is it possible to remove the Toshiba THGBMFG8C4LBAIR 32 GB Flash memory and place it into another G4?

Jon - Reply

Did you get a reply to this? I'd like to know, too.

matthewtreed -

Of course, I've done it yesterday

Александр Иванов -

Where is the Bluetooth module or antenna located?

Olaf Hoyer - Reply

I have very bad 3G network connection the strength sucks. where is the antenna located?

Thanks for reply

psychokuh - Reply

I lucked out buying the G4 last year for my wife. The screen, camera are superb. Now I'm glad the repairability is strong. Now this is a primary deciding factor in buying a phone. I don't think I'll be buying a new phone for a while, even this G4 was second hand, like new.

Jack - Reply

The NFC antenna can it be upgraded or possibly can I make one

Ace - Reply

my phone just stopped working the other day for no apparent reason. new chargers , different places and a new battery today. no luck . I noticed in the teard

down pictures . the white square next to the four gold prongs that line up with the battery , mine is red . any thoughts ? please help I have so mNY Pics that cant be replaced...... my house burnt down last august

lmbridgy - Reply

it appears that the car charger burnt my LG-G4, it won't turn ON anymore. any ideas which component can be replaced -or- is it better to forget it?

Lalit Sharma - Reply

How do I replace the bezel around the screen?

alexandercolon - Reply

oh...the good days that ended on the g4 for lg, and s4 for samsung..................you will be missed flimsy removeable back cover

gunpla5020 - Reply

my key boad will not come on for my pass word

magreenf150 - Reply

Screen replacement took about a half hour. Heat source was required to separate old screen from frame.

The Bus From Speed - Reply

Hello

I burned motherboard model LG G-4 (H 818P), and I want to buy please give me Information manager.

Sol69h Sol - Reply

Hello, you have the PMI8994 and PM8994 Power Management ICs on your motherboard?

Roman Galifor -

I give a message to Iran and to How can I access lg g4 phone motherboard model h818p I get?

Sol69h Sol - Reply

hi needs help from where can I buy Samsung K3QF6F60AM-QGCF 3 GB LPDDR3 RAM

Omar - Reply

Why do you think about RAM. RAM crashes in the phones very rarely, DO NOT THINK THAT BOOTLOOP WAS CAUSED BY RAM OR CPU. THIS IS VERY BAD NAND SOLDERING. REBALL IT AND ALL WILL BE NICE.

Александр Иванов -

can somebody learned in the ways of motherboards tell me if there's any possible way to pull off pictures, music, notes, etc. after the G4 goes into its bootloop? I have a lot of priceless files and data on this phone I would probably sell my soul for. As far as I know, it's irretrievable. Can someone confirm or deny this?

To anyone considering this phone, stop. This is my second LG G4 that died due to motherboard manufacturing issues. They aren't isolated instances. Most users have had this issue within 6 mos. to 1 yr. of purchasing. Interesting how the phone dies right around the end of its 1-Year Warranty.

I have no interest in having this phone replaced by LG or repaired since I already ordered a new phone. I just want to extract the files. There has to be some way to do this. I find it hard to believe that in December 2016 that this can't be done. The only reason I haven't gone Office Space on this otherwise useless phone is because I still have hope I can retrieve my lost files.

LGMakesMeSad - Reply

Of course, but only if you have equipment. Only some of repairman can do it.

Александр Иванов -

Put it in the freezer in a Ziploc bag. Wait about an hour. Should boot normal. But will give u a short window to get files off. Once chip starts heat up, jumps into boot loop again. I had good luck sandwiching phone between 2 big ice packs and using my laptop with usb. micro cable download all files needed.

Jon Hartsock -

Does anybody know where the GPS Antenna/contacts are? My GPS stopped having reception a while ago, would like to see if there is a fix possible.

hans - Reply

I'm aware the g4 has two external LDI stickers. One in the battery compartment and one on the battery itself. But does it have internal ldi stickers?

Nunyally Li - Reply

where can i buy a new motherboard ? cause they ask ridiculous prices to repair outside warranty . and repairing? i can do that myself not that difficult

maurice1975 - Reply

Anyone know which IC deals with the touchscreen? I have a new frontpanel and digitizer and LCD, all were working before the Bootloop/dead phone issue. I got the phone working again with a heat gun to only the mother board. but no touch screen. Roger - 1/28/17

Roger - Reply

I need the replacement of the front receiver for this cell phone. Do you have it available? Thanks!!

RICARDO - Reply

Hey, after a waterdamage and a bath in Isopropanolalcohol to save it, my LG G4 reacts normally. Touch, Calls, Cam etc. But the screen stays very very dark. You almost cant`t make out anything. What can it be?

raspberrychocolate - Reply

How can I remove the microusb charging connector?

Rei Mici - Reply

how can i repair a discharging phone

majid muhwana - Reply

Hi, Can someone tell me where the GPS antenna's at?

Nilupul Fernandopulle - Reply

PLEASE HELP:

Can you tell me how to Change the red glas from the Laser-Autofocus-Sensor? The plastic is a little scratched and so my LG G4 has Problems with focusing! PLEASE HELP. !!!!!!!!!

jcjc - Reply

how do i add ton ain antiana

Toby Andrus - Reply

my lg g4 network signals has become weak due to some reason can any one tell me solution..

haseeb_7788 - Reply

hello,

my lg 4 powered off and wont power back on and has a full charge.I need to somehow try to recover my texts off of it.Is this possible without spending a fortune.Help..I need them for court

Anita DelBalso - Reply

Is there a way to replace whatever part of the phone manages display? I got my LG wet on the weekend. Phone working - but no display. I can live with the sketchy speakers. Been in rice 2 days. Can only answer in my car on bluetooth. it will not "swipe" to answer, etc. on a blacked out screen.

Chattering H - Reply

On the mainboard:

What function does the mainboard smaller part (under NFC chip) have?

I have the mainboard with that smaller thin lateral side (antenna I think) broken but it works apparently normal: bluetooth, wi-fi signal, carrier signal, etc

Ramre - Reply

Having issues with screen splitting vertically/glitching. Maintains image just keeping shifting up/and down on left side.Right side of image stays still. Replaced screen/digitizer unit, still the same anyone have any advice?

john knight - Reply

No Light Display. .. Took my G4 apart to repair micro usb hub and when I put it back together I can no longer see the screen without nothing short of a bright light shining on screen. anyone have a few suggestions of possibilities of what I done wrong? does screen get sealed with something or did misplace the lcd lights maybe?

kidd smoke - Reply

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