New Update - 34.1004.0204.120 causing constant reboot with AT&T SIM card inserted

[Open1Your1Eyes0]

Installed the update version 34.1004.0204.120 just now and now my phone is constantly rebooting if I have my AT&T SIM card inserted.

If I remove the SIM card everything works, even connecting to WiFi everything works fine. The moment I insert my SIM card back the phone immediately reboots within 15 seconds or so.

Other folks are reporting this issue too on the Zenfone subreddit.

Not sure if it is AT&T specific as someone mentioned with a different SIM card (Tello) everything works fine for them. UPDATE - This seems to be confirmed an issue only with AT&T SIM cards.

This is relatively urgent as I completely can't use my phone right now with my usual SIM card inserted (I'm sure as many others as well).

I was on update version 34.1004.0204.88 just before this and everything was working completely fine since day 1 for me so clearly this update caused the issue, this is not a hardware or unique user data issue.

Some additional things I noted - If I insert the SIM card but the phone is in airplane mode then it doesn't cause the issue. If I have no SIM card inserted and use WiFi it also doesn't cause the issue. But if I insert the SIM card in airplane mode AND connect to WiFi then it keeps on restarting again. If I disconnect WiFi and go in airplane mode (with the SIM card inserted) OR remove the SIM card (and connect to WiFi) then it starts to work again. Seems the issue is related when it is trying to connect to the AT&T network directly (via SIM) or connecting to any WiFi network when AT&T SIM card is inserted. Not sure if this issue is an with other carriers as well but this is what I noticed so far.

[Gutter_Fool]

I've been going to all the main boot loop threads and posting this link, hoping to ease some people's minds like it did mine.

[Gutter_Fool]

Everyone, just a little more patience! An update addressing the AT&T SIM Card issue has been released for the ZF9 and ROG 7. Release Announcments found here: 3/28/2024 Zenfone 9 Android Update & 3/28/2024 ROG 7 Android Update 

I am sure other model updates will be rolling out sooner than later.

[MeatPopsicle]

The Zenfone 9 appears to have received a fix already. It's been a week and my Zenfone 10 is still a useless paperweight if I try to use it as an actual phone. I tried putting the SIM in Slot 2, but it still bootloops.  I can't even rollback the update.

This is completely unacceptable.  I currently own 2 Asus monitors,  an Asus motherboard, an Asus graphics card, and now I have an Asus phone brick. This will be my last Asus purchase.  I no longer trust Asus with my most important device . I just finished backing up my data. I am calling today to start the RMA process.

[Open1Your1Eyes0 · Accepted solution]

After a week of waiting we finally have a resolution to this issue courtesy of update version 34.1004.0204.128 released just now!

I just updated and rebooted my phone and inserted my SIM card and can confirm the bootloop is no longer occuring and all AT&T services are working as expected once again! 🙂

Thanks again everyone for collaborating together on notifying ASUS of this issue for our phones.

[Emsodo]

Still no fix for 6...crazy to think this phone is a year old and they are on 8 now...