This may be useful - it shows along-side two different versions of the back cover of the G5 (H850). I noticed the differences whilst troubleshooting GPS problems. Swapping the backs between two phones fixed the issue in this case. There look to have been some design changes during production for these phones.
You seem to be able to buy new OEM backs on a popular online auction site, but I ended up getting a reliable fix by buying a used one for a little under £4 (approx USD $5).
This photo (click to enlarge - otherwise it’s difficult to see the detail I’m talking about) shows the phone screen and motherboard at the top, the replacement (working GPS) back next to it (centre of the photo), and finally the original (non-working-GPS) back at the bottom (sitting on top of and partly covering the working one).
[image|1557529]
The design differences in the working back (centre of photo) are:
# The square gauze to the left has been moved to the right of the photo, and sits partly directly on the aluminium phone back, and partly on a rubber pad (I tried making this mod on the old phone, but it wasn’t successful - that’s why the old gauze looks a bit battered and you can see some adhesive residue where I used double-sided tape to fix down a rubber pad).
# The brown/grey conductive pad (on the new back - in the centre of the photo) seems to come up a bit higher, and completely replaces the tiny PCB with the pad on which the old back has. The surface-mount component on that tiny PCB is probably a capacitor, because I can’t get a resistance measurement across it. The four vias (square pattern) that you can see on the tiny PCB measures zero-ohm to the metal of the case. On the new back the the brown/grey pad is zero-ohm to the metal of the case.
Just in this thread, you can see three different designs for the contact at the edge of the case, so this must have caused LG plenty of grief!
This may be useful - it shows along-side two different versions of the back cover of the G5 (H850). I noticed the differences whilst troubleshooting GPS problems. Swapping the backs between two phones fixed the issue in this case. There look to have been some design changes during production for these phones.
You seem to be able to buy new OEM backs on a popular online auction site, but I ended up getting a reliable fix by buying a used one for a little under £4 (approx USD $5).
This photo (click to enlarge - otherwise it’s difficult to see the detail I’m talking about) shows the phone screen and motherboard at the top, the replacement (working GPS) back next to it (centre of the photo), and finally the original (non-working-GPS) back at the bottom (sitting on top of and partly covering the working one).
[image|1557529]
The design differences in the working back (centre of photo) are:
# The square gauze to the left has been moved to the right of the photo, and sits partly directly on the aluminium phone back, and partly on a rubber pad (I tried making this mod on the old phone, but it wasn’t successful - that’s why the old gauze looks a bit battered and you can see some adhesive residue where I used double-sided tape to fix down a rubber pad).
# The brown/grey conductive pad (on the new back - in the centre of the photo) seems to come up a bit higher, and completely replaces the tiny PCB with the pad on which the old back has. The surface-mount component on that tiny PCB is probably a capacitor, because I can’t get a resistance measurement across it. The four vias (square pattern) that you can see on the tiny PCB measures zero-ohm to the metal of the case. On the new back the the brown/grey pad is zero-ohm to the metal of the case.
Just in this thread, you can see three different designs for the contact at the edge of the case, so this must have caused LG plenty of grief!
This may be useful - it shows along-side two different versions of the back cover of the G5 (H850). I noticed the differences whilst troubleshooting GPS problems. Swapping the backs between two phones fixed the issue in this case. There look to have been some design changes during production for these phones.
You seem to be able to buy new OEM backs on a popular online auction site, but I ended up getting a reliable fix by buying a used one for a little under £4 (approx USD $5).
This photo (click to enlarge - otherwise it’s difficult to see the detail I’m talking about) shows the phone screen and motherboard at the top, the replacement (working GPS) back next to it (centre of the photo), and finally the original (non-working-GPS) back at the bottom (sitting on top of and partly covering the working one).
[image|1557529]
The design differences in the working back (centre of photo) are:
# The square gauze to the left has been moved to the right of the photo, and sits partly directly on the aluminium phone back, and partly on a rubber pad (I tried making this mod on the old phone, but it wasn’t successful - that’s why the old gauze looks a bit battered and you can see some adhesive residue where I used double-sided tape to fix down a rubber pad).
# The brown/grey conductive pad (on the new back - in the centre of the photo) seems to come up a bit higher, and completely replaces the tiny PCB with the pad on which the old back has. The surface-mount component on that tiny PCB is probably a capacitor, because I can’t get a resistance measurement across it. The four vias (square pattern) that you can see on the tiny PCB measures zero-ohm to the metal of the case. On the new back the the brown/grey pad is zero-ohm to the metal of the case.
Just in this thread, you can see three different designs for the contact at the edge of the case, so this must have caused LG plenty of grief!