finitefutility 3 power down attempts later, 2 reboots and no luck still. Currently the device is off, hoping it will magically come back somehow later. Very frustrating.
No calls, texts or data after long press reboot
finitefutility I'm unaware of others who've reported this issue. It is possible that your phone has hardware that's beginning to show signs of failure.
Or there could be something about your setup or carrier. Can't be sure without more info.
You can try resetting mobile network settings from the owner profile in Settings > System > Reset options
Thanks, but reading through the previous replies sophronesis has had the same issue.
I did actually reset the mobile network settings from the owner profile and then powered down the device again, no luck again.
Previously the sim card works immediately in another Pixel with stock OS, and another sim did not work in my phone.
What kind of hardware issue would this be? I was hoping to hold out for a potential 8a.
other8026 sorry, what more info would be helpful to determine a cause?
finitefutility Thanks, but reading through the previous replies sophronesis has had the same issue.
Oh whoops. I missed that.
finitefutility what more info would be helpful to determine a cause?
A factory reset or going back to the Stock OS might help rule out a software issue.
Or hopefully someone else here on the forum will have other suggestions.
other8026
I tried both a factory reset and have gone back to stock OS, both did not make a difference.
On stock OS, I went into that hidden Phone Info menu that apparently isn't available on GrapheneOS and for some reason, it shows that mobile radio power is off.. and I can't seem to re-enable it!
Have you tried speaking with your mobile carrier about this?
I would suggest reading through the troubleshooting tips listed in https://grapheneos.org/usage#carrier-functionality.
I would suggest manually setting up the APN using the instructions from your mobile carrier, for instance.
- Edited
treequell
I don't think it's carrier related as my sim works in 2 different phones immediately? Having said that I did manually set up APN settings according to my mobile carrier's instructions. I did read through that page as well, thanks for pointing me to it agian.
Could it be possible a SIM is defective in just one phone?
Google chat support says to send it to an authorised repair centre but at a high estimated cost.... so maybe I'm better off going for a Pixel 7a which is on discount now :D
finitefutility
I assume you checked to make sure mobile data was enabled ? It sometimes switches off .
Have you tried Sim in another device or moving physical location too see if its poor signal reception?
finitefutility Previously the sim card works immediately in another Pixel with stock OS, and another sim did not work in my phone.
finitefutility I tried both a factory reset and have gone back to stock OS, both did not make a difference.
finitefutility I don't think it's carrier related as my sim works in 2 different phones immediately?
If you have tried your SIM card in multiple phones, and it doesn't work in only your 4a5g, and you have tried a different SIM in your 4a5g but that doesn't work, and you have tried two different OSs (GrapheneOS and the stock Pixel OS) on your 4a5g, then (a) you've done a lot of careful debugging work, but (b) it sounds as if the most likely cause remaining is a hardware failure on your 4a5g, probably the cellular modem. If part of a device is going to break, it can often break when a device is power-cycled.
finitefutility Could it be possible a SIM is defective in just one phone?
In theory, yes.... maybe one of the contacts is scarred or corroded in exactly a way that matches a flaw in the phone's SIM contact array. But that would be a very unlikely event. Where I live, most carriers are willing to issue a replacement SIM for no cost or a minimal cost, so you might try that.
But I'm afraid the most likely situation is a hardware failure in your 4a5g.
finitefutility Still no idea why a reboot would kill connection to carrier and why keeping the phone off for a few minutes restores it.
finitefutility 3 power down attempts later, 2 reboots and no luck still. Currently the device is off, hoping it will magically come back somehow later. Very frustrating.
This pattern -- an intermittent problem that gets worse over time -- is also consistent with hardware failure, especially hardware failure on an older device. Unfortunately, I honestly think all the evidence points in that direction.
de0u If you have tried your SIM card in multiple phones, and it doesn't work in only your 4a5g, and you have tried a different SIM in your 4a5g but that doesn't work, and you have tried two different OSs (GrapheneOS and the stock Pixel OS) on your 4a5g, then (a) you've done a lot of careful debugging work, but (b) it sounds as if the most likely cause remaining is a hardware failure on your 4a5g, probably the cellular modem. If part of a device is going to break, it can often break when a device is power-cycled.
Yes, it feels like it is a hardware failure.. which feels somehow "wrong" for it to happen at just 2.5 years after purchasing the phone but I guess it is what it is.