Related
I've tried several resets, I even restored a two day old backup made via spb backup and yes, have also gone into "connection setup" under connections and let it setup AT&T as my provider which subsequently asks for restarting the pda. Also, the HSDPA utility is still showing a check mark on HSPDA On.
All of the above have failed to get my phone back to 3G speeds. I've even tried to surf/download thinking maybe just the icon is showing "G" or "E" however its painstakingly slow now.
So, its either the "G" icon or "E" is what shows now. This all happened when I looked at my phone this morning after SPB backup had performed its scheduled backup that was triggered around 2:30am.
other than that... THIS IS AN AMAZING ROM BY DUTTYTHROY!! YOU RULE DUDE..
oh.. almost forgot: my radio is 1.27.14.09 which I've read that only works with the AT&T Tilt, which is what I have. Just an FYI.
Someone please help as I'm a heavy data user hence can't afford to be without 3G/HSDPA ... TY
AJ
ATT Blocking Unlocked Phones
The Folks at att are blocking unlocked phones fron the 3g and hsdpa network.
meyer1979 said:
The Folks at att are blocking unlocked phones fron the 3g and hsdpa network.
Click to expand...
Click to collapse
WTF... Thats messed up! I've had this problem just today though. Also, my Tilt isn't unlocked to the best of my knowledge.
Please - somebody tell me this isn't true!!!
meyer1979 said:
The Folks at att are blocking unlocked phones fron the 3g and hsdpa network.
Click to expand...
Click to collapse
Cite your sources.
I get 3G/HSDPA just fine on my Kaiser, whenever at&t actually built out some towers.
When I first tried this rom (radio 1.27.14.09) I lost all connection with AT&T but after several hours and traveling into another area everything seemed to fall back in place. I've also noticed that the phone is very slow to reconnect after passing through blacked out areas, not sure why other AT&T phones lose connection but come back online much faster.
Otherwise the ROM is great.
Is it possibly something to do with your rate plan?
EDIT: nevermind I'm using a diff rom I think
NuShrike said:
Cite your sources.
I get 3G/HSDPA just fine on my Kaiser, whenever at&t actually built out some towers.
Click to expand...
Click to collapse
Seems that there's a chance that this is true:
http://info-safety.blogspot.com/2007/12/at-blocks-unlocked-phones.html
http://www.digg.com/tech_news/AT_T_Blocks_Unlocked_Cell_Phones
I personally don't have any issues on the network. I'm running Dutty No.6 AT&T. Does this problem apply to a CID unlocked phone, a SIM unlocked phone, or both?
Regards,
Jeff
3G on/off
JohnnyGTO said:
When I first tried this rom (radio 1.27.14.09) I lost all connection with AT&T but after several hours and traveling into another area everything seemed to fall back in place. I've also noticed that the phone is very slow to reconnect after passing through blacked out areas, not sure why other AT&T phones lose connection but come back online much faster.
Otherwise the ROM is great.
Is it possibly something to do with your rate plan?
Click to expand...
Click to collapse
It shouldn't be my rate plan as I have the PDA unlimited for $39.99. Also, here's an update. This morning when I woke up my Tilt it was still showing E and my wishful thinking of Santa giving me a pre-christmas gift by fixing my phone (I'm easy) were just about drowned. ...however out of nowhere and without doing anything to the phone like soft-reset etc., the 3G icon came back and now its been coming back intermittently..
Now I'm pretty sure that its not that I'm traveling in a non-3G area and thats why its coming back intermittently as I live in a decent size metro area of Jacksonville FL and also because the areas I've been to this morning have always had 3G.. unless I'm wrong.. which I sure hope so..
BTW: I "downgraded" my Radio to 11.17 last night itself as one of the things I was trying to fix this issue. Just an FYI.
Here it is in a nutshell!!
Please note the following:
1) Got my new (unlocked) tytn II on dec 12.
*Sim in at 6:00pm. Had 3g & hsdpa till 10:00 pm. Went to bed.
*Dec 13th could not make calls or connect to data while on 3g.
*Calls would disconnect. Hsdpa message "the answering modem has disconnected "
* Switched back to gsm mode. Phone works but no 3g or hsdpa support.
*Dec 14 called att. Customer service said "unknown device" not supported.
*Transfer to data tech " Stated unsupported device" cant add the pda data package for $39.95. Stated my imei was blocked from 3g & hsdpa because of unlocked device status. But edge & gsm would work. Note edge & gsm modes work.
*Data tech said go to att store and get another branded att 3g device and use it to activate the pda data plan.
*I did this at 2:30 pm est. It worked for about 1/2 hour till 3:00 pm est. So much for my $39.95.
*Called att again & got a product support specialist(pr guy haha).he stated:
2) Att will not support an unlocked device.
*I said what about my $39.95???? I also said that i was a paying us att customer and was willing to pay for the high speed service. He said that they could no change my device unlocked status within the att network even though i was willing to pay for the data plan. I was pissed at that point. I told him that the hardware supports 3g & hsdpa and stated that att had locked a paying customer out of the 3g network. He said again "att does not support unlocked devices". I then asked him why i had access to the gsm & edge network and why att supported me on it and not 3g or hsdpa? I must have stumped him because he put me on hold. His reply after talking his boss was "att wil not support an unlocked device. We went back & forth like this until I Said "THIS IS BULLSHIP & HUNG UP.
* He call me back about an hour later because i threatened to switch back to verizon an stated " if you had the att original rom and if the phone was carrier locked it may change my device status" I said that I would give it a shot.
* Got the orig. att rom from here. Used sspl to apply cid per the reverting instructions. Phone said att 3g on startup & cid-8. Still no 3g. flashed hspl and bact to duttys rom 7.b for now.
In summary I can get the 3g & hsdpa signal but nothing works when connected! CAN YOU SAY CLASS ACTION LAW SUIT!!!
3G Test on AT&T network
How can we test if we are getting 3G speeds after changing our ROMs? I see the 3G and H logo's but don't think I'm getting the speeds.
Does changing the ROM unlock our AT&T phones?
Is there a ROM that is transparent to AT&T and allow us to use the 3G speeds?
Will reverting back to the AT&T Rom allow us to get the 3G speeds again?
newbie
Are you on drugs? , AT&T unlocks their phones, that does not matter , the reps you were speaking with are retarded they use a BILLING SYSTEM called TELEGENCE if you enter a IMEI wrong or of a unlocked device it gives back a UNKNOWN device message which means pretty much the reps can and if they dont want to , wont help you get your data working because they are lazy as ****. they do not block data on phones nor can they monitor your device to know what you are doing. their HLR's are only one way addressable.
Ok, I just upgraded to this ROM (cus duttys roms are amazing) after I read your post and...
I ran into some connection problems after my programs started looking for "my ISP" (isp.cingular) instead of "MEdia Net" (wap.cingular) In "advanced settings" in "connections" I re-set programs to run off MEdia Net, and it seems all is well
I think it might have switched when I was screwing with the comm manager and turned G3 off
DISCLAIMER: I'm a noob so take my advice with a grain of salt haha
No probs w/ ATT
My unlocked phone works just fine on the ATT network and i constantly get 3G UMTS and HSDPA speeds. Att does not block any device you are able to use on their network as they have roaming contracts with cell phone service providers across the world. If your device does not receive 3g speeds you can have your imei number added to the ATT allowed database just call 611 from your phone and talk to the service rep. If they give you any problem then call back and tell them you want to add the imei number of a wireless data card for computer and they will add that for you.
Must have been smoking the glass pipe!
Sorry folks.
This is a reception problem for me.
ATT really jerked me around.
The problem is a weak 3g signal.
If i dont have four bars 3g & hspda fail.
I went & sat under an att tower and everything works.
As soon as I drive away from the tower and the signal strength drops I loose 3g calling & Hsdpa.
Is there a fix.
trick420 said:
Seems that there's a chance that this is true:
http://info-safety.blogspot.com/2007/12/at-blocks-unlocked-phones.html
http://www.digg.com/tech_news/AT_T_Blocks_Unlocked_Cell_Phones
I personally don't have any issues on the network. I'm running Dutty No.6 AT&T. Does this problem apply to a CID unlocked phone, a SIM unlocked phone, or both?
Regards,
Jeff
Click to expand...
Click to collapse
How about this quote straight from the at&t CEO?
http://www.engadget.com/2007/12/06/atandt-claims-completely-open-network-too-the-most-open-eve/
Digg and random bloggers aren't really a good source. I remember the bullfrap article on Digg about Hummers being more environmentally conservative over a lifetime than any other green car.
have you tired having your sim card replaced? I had a similar issue where i was not able to call or receive calls in 3g but could on edge for a good day. Went to ATT and found out that others were having same issue with kraiser had them replace my sim card and everything worked great after.
Got 3G back and for good.... so far!
jellorice said:
have you tired having your sim card replaced? I had a similar issue where i was not able to call or receive calls in 3g but could on edge for a good day. Went to ATT and found out that others were having same issue with kraiser had them replace my sim card and everything worked great after.
Click to expand...
Click to collapse
thanks for the tip jellorice.. I actually got my 3G back since yesterday and its been working great ever since. As for the sim being faulty, Thats something I didn't even think of and now that you've mentioned it, I'll keep in mind for future troubleshooting as I'm sure some other issue will crop up.
Nevertheless, Dutty's ROM 6 is UNBELIEVABLY AWESOME!!! I'm sure Dutty's gotten numb to all the kudos he's got and still is getting, being in Gazillions... but I wish I had better words to describe this ROM as for someone like me who is virtually bringing food on the table because of the Tilt (heavy business user), the key strengths of his ROM are just Marvelous.
Sry for getting sidetracked.. I got a little exited there.
I have an inspire that I use on Tmobile. The probem I have is my calls are not coming in. I have the data turned off. I have to keep calling tmobile to correct the issue. I was told today that the issue is my phone will not stay conencted to the network. I got the unlock code from ATT before starting service with tmobile. Any assistance is greatly appreciated. I have been looking for three days on this issue and have not found anything.
thanks
have you started using your tmobile sim card and not the ATT one? also you will need the tmobile apn configurations.
http://support.t-mobile.com/docs/DOC-1979
Yes I updated to the APN codes that Tmobile gave me but it seems like the calls come through for a few minutes after turning the phone off and back on.
you also need to turn off 3g and 4g as those are not supported by the inspire. (uses different frequency ranges that the inspire doesnt have) so turn on 'use 2g only networks'
menu->settings->wireless and networks -> mobile networks
and also make sure youve deleted any non tmobile apns. (not trying to insult just covering all the basics)
I dont have an option to use 2g only. I was looking for that. I am new to having an unlocked phone so I am not sure of what to do. Tmobile jsut said the only thing i can do is turn the phone off and on throughout the day in order for it work. I am just checking because that seems to be too much work just to use the phone.
dial *#*#4636#*#* and go to phone information and scroll down to set preferred network, change it to GSM ONLY
it really sounds like its working, but then its trying to connect to higher networks as in when u first connect u watch to go from Edge to 3G then to 4G
Thanks for all your help. That did not work as well. I powered off and on. It is still not ringing. Looks like I will have to invest in a tmobile phone.
I have seen similar posts of this issue with the Z3 and Z3C, but I wanted to post my experiences and see if anyone that has this issue has been able to resolve it.
I have an unlocked D6603 that I purchased directly from Sony US. When I received it, I got a new LTE SIM from AT&T, but did not give them the IMEI from the Z3. I activated the SIM and still have my old phone's IMEI listed as the device (LG G3). I inserted the SIM card, downloaded the APN settings, rebooted the phone, and everything was working great.
When I got home from work the next day, my wife said that she had called and sent me text messages that I did not receive. I rebooted the phone and all of her texts (as well as texts from other people) came through. This happens almost every day, and sometimes multiple times in one day. I either have to reboot the phone or change the network settings from LTE to WCDMA for the texts to come through.
One thing just noticed while making an incoming call.. My Z3 has full LTE signal, but when the call is coming in, it immediately switches to HSPA, and when the call is disconnected, it immediately switches back to LTE. Not sure if that's normal behavior or not, but figured I would include it in this post.
Same issues with AT&T. Intermittent calls and texts. It's thanks to AT&T's archaic verification system. Because you don't have a bloated AT&T issued device, you need to keep your old (AT&T issued device) IMEI to be able to get LTE signal for data. If you give them your current Z3 IMEI, you will always receive your texts and calls on time but you will not be able to get LTE because your IMEI is not registered in their database. It's a classic case of a carrier advertising "bring your own devices to our network but we won't load your IMEI so you can access the services you actually pay for", pathetic. T-mobile and Verizon actually offer the device but AT&T won't. Also, AT&T does not offer voice over LTE so your calls will always be 3G (H or H+) when connected and when disconnected your phone will go back to LTE for data. You have two choices with the extortion king, AT&T. Update IMEI and get all calls and texts in a timely matter while forfeiting LTE or leaving your old IMEI and get LTE but miss calls and texts. Ridiculous.
My situation is exactly like the op except i dont miss calls and recieve all my text, so something must not be right, have u tried flashing a differnt ftf?
Multiple, doesn't change anything.
Has anyone tried to use a Z3 IMEI in the last month? I know that when it first came out, it was an unrecognized device for purposes of LTE, but at some point that will change. For example, I am using a Z2's IMEI right now, and that certainly is not an AT&T device.
augie7107 said:
AT&T. Update IMEI and get all calls and texts in a timely matter while forfeiting LTE or leaving your old IMEI and get LTE but miss calls and texts. Ridiculous.
Click to expand...
Click to collapse
I changed the IMEI on my AT&T account to match my Z3's IMEI, since I would prefer to receive all of my calls and texts over having LTE. After making the change and rebooting my Z3, I still had an LTE connection and I did not experience the missed calls/texts for a few days. Yesterday, I did not receive any texts or calls so I rebooted the Z3 and texts started coming through. So it appears that using the Z3's IMEI is still preventing calls and texts from arriving.
nirvanayoda said:
Has anyone tried to use a Z3 IMEI in the last month? I know that when it first came out, it was an unrecognized device for purposes of LTE, but at some point that will change. For example, I am using a Z2's IMEI right now, and that certainly is not an AT&T device.
Click to expand...
Click to collapse
After adding the Z3's IMEI, it is still showing as an unknown device with AT&T, yet it does get an LTE connection.
svnyster said:
I changed the IMEI on my AT&T account to match my Z3's IMEI, since I would prefer to receive all of my calls and texts over having LTE. After making the change and rebooting my Z3, I still had an LTE connection and I did not experience the missed calls/texts for a few days. Yesterday, I did not receive any texts or calls so I rebooted the Z3 and texts started coming through. So it appears that using the Z3's IMEI is still preventing calls and texts from arriving.
After adding the Z3's IMEI, it is still showing as an unknown device with AT&T, yet it does get an LTE connection.
Click to expand...
Click to collapse
I just picked up a Z3 straight from a Sony store last week, stopped by an AT&T store first to get a nano sim which they handed me with no question asked but I didn't activate right away as I still had my ion on....
Once back home inserted the nano sim in the Z3 called AT&T to activate the sim, they sent me a text to verify my account and the settings were downloaded to the phone, they asked me if it was a new phone, just told them no just a new sim in my old phone...right away I noticed that I didn't have LTE at all, so went into the APN setting which were a bit different that what I had in the xperia ion, deleted the APN that was downloaded by AT&T to my phone and entered the ion settings manually into the Z3 and right away LTE was back....not a single problem receiving calls/texts and LTE on full time since then...
APN settings (the difference is in the name of the APN from what was downloaded by AT&T if I recall correctly)
{
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"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
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The same issue is affecting me too. I also have the D6603 on AT&T network. Don't bother asking AT&T for help, they will say nothing is wrong w/ their network (which I think is technically correct). This sucks because I was motivated by their bring your own device promotion only to be disappointed that they can't help resolve this issue.
Anyway, turning LTE off made the calls and texts more timely for me. So the easy workaround is to add the LTE toggle quick setting button so you don't need to click a few places to get into settings > more... > mobile network setting > network mode > to turn off LTE. This should default you to WCDMA/GSM when LTE is off by the way. I think the speed is somewhere between 3G and definitely not as fast as LTE, but not unbearable either.
This is still a pain in the butt given that we freaking PAY for LTE, but it's a simple work around (for now at least...)
svnyster said:
I have seen similar posts of this issue with the Z3 and Z3C, but I wanted to post my experiences and see if anyone that has this issue has been able to resolve it.
I have an unlocked D6603 that I purchased directly from Sony US. When I received it, I got a new LTE SIM from AT&T, but did not give them the IMEI from the Z3. I activated the SIM and still have my old phone's IMEI listed as the device (LG G3). I inserted the SIM card, downloaded the APN settings, rebooted the phone, and everything was working great.
When I got home from work the next day, my wife said that she had called and sent me text messages that I did not receive. I rebooted the phone and all of her texts (as well as texts from other people) came through. This happens almost every day, and sometimes multiple times in one day. I either have to reboot the phone or change the network settings from LTE to WCDMA for the texts to come through.
One thing just noticed while making an incoming call.. My Z3 has full LTE signal, but when the call is coming in, it immediately switches to HSPA, and when the call is disconnected, it immediately switches back to LTE. Not sure if that's normal behavior or not, but figured I would include it in this post.
Click to expand...
Click to collapse
Did you try setting your apn manually?
Delete whatever was downloaded by AT&T and enter the one I posted...I don't have a single problem since
-DM- said:
Did you try setting your apn manually?
Delete whatever was downloaded by AT&T and enter the one I posted...I don't have a single problem since
Click to expand...
Click to collapse
I did try your APN settings, which seemed to work at first, but the issue came back after a day or two.
I contacted Sony about it and they are placing the blame on AT&T. They also had me do a software repair using the Sony PC Companion software. I'll have to test it for a day or two to see if I continue to have problems or not.
svnyster said:
I did try your APN settings, which seemed to work at first, but the issue came back after a day or two.
I contacted Sony about it and they are placing the blame on AT&T. They also had me do a software repair using the Sony PC Companion software. I'll have to test it for a day or two to see if I continue to have problems or not.
Click to expand...
Click to collapse
still receiving calls and texts just fine but can't answer anymore as I have a different problem now...the phone took a dive from a cliff (literally)
First time I drop and break a phone but also first that I buy insurance, took the" protection plus" when I was at the Sony store, kinda hesitated at first but went for it finally, glad I did now, getting a new one mailed and waiting for it to arrive...
My issue was fixed
I had the same problem for the longest time with all official roms and Slipsystem's. I installed the unofficial CM 12 and the problem disappeared. It is something in the official stuff that messes with it.
I'm on att and don't have this issue at all. Store used a s5 imei when i switched
I have to disagree with some of the comments above. I'm on a D6603 in Texas purchased from the Sony online store several months ago. Had to go to a store to get the new sim card anyway and the salesman registered the phone using the IMEI off the box. The Z3 was added as a new phone on the account (I wanted to take my time moving stuff plus I intended to port my old number to Google Voice anyway). I did the setting option to download the APN myself a few minutes later. The Z3 shows as unknown model on ATT online but LTE data works fine and I've had no problems receiving/making calls or messages. So, using the z3's real IMEI is NOT the problem. Perhaps the problem is some setting that doesn't get reset properly when switching an existing phone whereas adding it as a new line avoided that?
@svnyster @augie7107 @pbsteebs @nirvanayoda have you found a solution to this problem?
here's my experience.
1. I have a straight talk sim card (it uses ATT network) and I experience the same problem.
2. My Xperia Z3 D6603 has LTE coverage, but after a while - even with signal at 2/3 bars - it doesn't receive calls or texts until I restart it, switch airplane mode on/off, or toggle LTE/3G.
3. I know for sure this is not related to the rom I'm using: the phone was in stock conditions (kitkat 4.4), then I rooted and installed a debloated stock lollipop rom... still the same problem.
4. I also know that this is not a sim card issue: we have 2 Xperia Z3 phone (one is my wife's). If I swap my sim card in her phone I have no problem, and call and sms get through. So only one of our Z3's is affected by this problem.
5. Finally, the only way I found to work around this was to switch to WCDMA (preferred)/GSM (instead of LTE preferred/WCDMA/GSM). In this case i receive all calls and sms but I have to give up LTE.....
Any thoughts?
Thanks a lot for your help!
MrYous said:
@svnyster @augie7107 @pbsteebs @nirvanayoda have you found a solution to this problem?
Click to expand...
Click to collapse
I actually ended up switching devices, because I was unable to do my daily work without consistent LTE, and I got tired to switching between LTE and WCDMA.
Everything I read from AT&T shows that the LTE bands they use are 2, 4, 5, and 17, which the D6603 has all of those bands. However, my new device (Samsung Galaxy Note 4) also includes LTE Band 12, which the D6603 does not support. I know that Band 12 is used by T-Mobile, but if AT&T is using this band in certain areas, that could possibly be part of the explanation of why we're having this issue.
Thanks @svnyster!
I also don't think that switching between LTE and WCDMA is acceptable.
But what confuses me is that we have 2 Z3s and only one of them has this problem...
Any idea if unlocking all bands as suggested here would help?
http://forum.xda-developers.com/cro...ad-progress-please-leave-im-updating-t2871269
Thanks again.
Pretty sure it has something to do with how AT&T recognizes your IMEI. Check your account and see what icon shows for both devices. If they are different, that's the culprit. I can't get calls and messages with LTE enabled on my Z3. Fine with 3G. My solution was to leave LTE off until I needed it to stream outside of Wi-Fi. AT&T recognizes my IMEI as a flip phone. I have a HTC M9 as well, unbranded edition, and AT&T recognizes the IMEI as a M9 and calls and messages come through immediately even though LTE is switched on.
i've resorted to leaving LTE off and using the H+, which someone explained is sort of like 3.5G but not quite 4G. At times I'll turn LTE on when I want to watch a video and am unable to connect to wi-fi. Sometimes I'll forget to turn LTE off, and find out later friends were trying to reach me but couldn't. As a result, for me, leaving it off is better (so I can be reached for clients or emergencies).
Still, I realize this is unacceptable, but AT&T does not support this phone (or sell it), so at the end of the day, it's my problem for wanting this phone in the first place. Don't get me wrong, I still like it a lot, but this issue and others are becoming a headache that Sony and AT&T could've gotten right from the get go.
Also, I did upgrade the Z3 to Lollipop. I've noticed the battery draining a bit quicker. Instead of having ~50% by end of day, I'm not at 25% levels. Not quite dead, but I still feel the urge to charge mid day when before I didn't have that urge.
Still, I like being able to move (some of) my apps now to the SD card, freeing up the barely 16 GBs on the phone.
I purchased my XZP about a week ago, and since it arrived, I've had issues receiving calls. I can make calls (it takes about 10-15 seconds to start ringing) but when someone tries to call me, it usually rings once for the caller, I get no rings on my end and then the calls go to voicemail. I am coming from the unlocked LG V20. I simply removed the SIM from that phone and placed it in the XZP. I have the dual-SIM version.
I discovered that I can receive calls when "GSM only" is selected under preferred network type, but that kills LTE. Any help would be appreciated.
holypuma said:
I purchased my XZP about a week ago, and since it arrived, I've had issues receiving calls. I can make calls (it takes about 10-15 seconds to start ringing) but when someone tries to call me, it usually rings once for the caller, I get no rings on my end and then the calls go to voicemail. I am coming from the unlocked LG V20. I simply removed the SIM from that phone and placed it in the XZP. I have the dual-SIM version.
I discovered that I can receive calls when "GSM only" is selected under preferred network type, but that kills LTE. Any help would be appreciated.
Click to expand...
Click to collapse
I have the G8141 bought from UK and using in the US (Ultra mobile which is an MVNO running on tmobile). I've never had issues similar to what you said. Try a factory reset. Also what ROM version are you in?
gauthamsv said:
I have the G8141 bought from UK and using in the US (Ultra mobile which is an MVNO running on tmobile). I've never had issues similar to what you said. Try a factory reset. Also what ROM version are you in?
Click to expand...
Click to collapse
I discovered that the issue is caused by poor service in my area. I have LTE but T-Mobile has used their LTE network to disguise that every other service in this area is garbage. If I drive a few miles away, my service works normally and I can use 3G data while talking on the phone. But at home, I stay on LTE and all my calls are directed to voicemail. I solved it by staying on LTE and using my Google Voice phone number full time and using the Hangouts Dialer app to make and receive calls. Its like I have VoLTE now. hah
Since the phone doesn't support (or vice versa) T-Mobile's VOLTE, the phone will only do calls on other GSM networks which T-Mobile is apparently phasing out. So data is great and the signal looks good, but then no calls in these areas. It's very frustrating. As mentioned above, calls over data from other apps do work. Hangouts, Digits, etc.
So I recently bought a Sprint HTC U11 off ebay, and at first it didn't work at all with my T-Mobile SIM, all it showed was a full strength signal with a capital R next to the signal bar. I called Sprint and they confirmed it's unlocked, although they said it may still be tied in some way to the original owners account, which could potentially cause problems.
I managed to get it working on LTE, by going into testing mode (*#*#4636#*#*) and setting the network to CDMA/LTE only, but with this setting I can only use Data, no Calls or Text. It is also has Sprint as the provider instead of T-Mobile, and I can't switch on VoLTE (greyed out in the Testing menu).
I tested it with some of the other settings, but anything that turns on GSM makes it glitch out, connect for only a few seconds to either T-Mobile or U.S Cellular (a provider I automatically roam on where I live), and then disconnect and refuse to reconnect to anything until I switch back to CDMA/LTE and reboot.
Is this a common problem with the Sprint version of this phone? Are there any fixes for it? The phone is currently not rooted or modified in any way, and is running Android 8.0, Software version 2.33.651.10.
Thanks for any help.
Packaroo said:
So I recently bought a Sprint HTC U11 off ebay, and at first it didn't work at all with my T-Mobile SIM, all it showed was a full strength signal with a capital R next to the signal bar. I called Sprint and they confirmed it's unlocked, although they said it may still be tied in some way to the original owners account, which could potentially cause problems.
I managed to get it working on LTE, by going into testing mode (*#*#4636#*#*) and setting the network to CDMA/LTE only, but with this setting I can only use Data, no Calls or Text. It is also has Sprint as the provider instead of T-Mobile, and I can't switch on VoLTE (greyed out in the Testing menu).
I tested it with some of the other settings, but anything that turns on GSM makes it glitch out, connect for only a few seconds to either T-Mobile or U.S Cellular (a provider I automatically roam on where I live), and then disconnect and refuse to reconnect to anything until I switch back to CDMA/LTE and reboot.
Is this a common problem with the Sprint version of this phone? Are there any fixes for it? The phone is currently not rooted or modified in any way, and is running Android 8.0, Software version 2.33.651.10.
Thanks for any help.
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Do the following on the thread and everything will work.
https://forum.xda-developers.com/u11/how-to/convert-sprint-branded-u11-to-unlocked-t3664154