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SGH-i780 with US ATT Service (mms/3g)

hey guys
i was wondering if anyone in the US has got their i780 working perfectly with ATT service. i am unable to get 3g and also i am unable to receive MMS. well i recieve mms, but the message is blank. im wondering if there was any specific steps i need to take to have them activated. i searched all over, but all the solutions seem to be only for the UK and singapore. any help is appreciated. thanks.
also i am using a stock rom.

sgh-i617
i had to call att to get my phone working correctly, it was on their end. They have to set up their end to work with a pda.

mike c said:
i had to call att to get my phone working correctly, it was on their end. They have to set up their end to work with a pda.
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did the rep give you any problems? when ic alled they claimed they didnt know the settings for it because it snot part of their supported phones.

bknewtype said:
did the rep give you any problems? when ic alled they claimed they didnt know the settings for it because it snot part of their supported phones.
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Your ability to get 3g will depend on if the phone supports the frequency american 3g is on. A lot of foreign phones don't
I had a hard time getting to cell me a data package too for my phone since I bought it unlocked. The a holes act like "if its not ours we cant guarantee it will work!" then they wouldn't cell me a data package except the crappy medianet one (I should have been dishonest and taken it, would saved $15 a month for the same service). Called back, got a different rep, gave him the IMEI number, told him it was a PDA, went smoothly.

[Q] "Your Sim card does not allow a connnection to this network"

This seems to be an existing issue as plenty of people online are reporting it but nobody seems to have settled on a reason or a fix.
Basically... I bought my wife a Desire S, unlocked, from a store in Dublin, Ireland. She's been using it on the Meteor network since December 25th, until two nights ago when she lost all service. Now when you try to connect to her network you get the error, "Your Sim card does not allow a connnection to this network". This has happened with any simcard we put into the phone, and all of those simcards including the one she was using when it failed, work in other handsets (my Nexus S, her old HTC Hero). GPRS data is still transferring although the phone gives no indication that this is happening.
I've tried several of the reported "fixes" that i've found online, pulling the battery, disabling the radio, etc and none have had any effect. I just did a factory reset and that has had no effect. When I boot into recovery it says *locked* at the top, but I assume that refers to the bootloader rather than the sim lock.
I assume it's as is from the factory and that no alternative radios were flashed prior to purchase. We haven't done anything in the way of custom roms/radios/recoveries with this phone, my wife isn't technical enough to do so.
I don't want really want to unlock/root if I can help it as i've contacted HTC and want it to fall under warranty if necessary. I haven't gone back to the vendor yet as they don't open until tomorrow. It's not the most upmarket shop in the world and I paid cash, so while I don't forsee any problem with an exchange etc, I don't want to have to rely on it either.
Android version: 2.3.5
Sense version: 3.0 (OTA update)
Software version: 2.10.401.8
Any help would be really appreciated...

Before you try anything else, have you run an IMEI check to make sure that the phone isn't blacklisted by the networks (reported as lost, stolen, suspicious behaviour etc)?
https://prod.eie.net.au/portal/template/MYMIMEIInquiry.vm/action/IMEIInquiryAction
If this one falls over then just Google "IMEI checker free" and have a play.
If is comes back clean then take it back to the shop - they have the first responsibility, especially after such a short period of time.

Thanks for that, I was scouring the internet for something that would check that.
"Your IMEI Number is currently unblocked."
Which is good news I suppose although it doesn't help me much.
My only issue with bringing it back to the vendor is that I bought it from an internet cafe in Dublin which also sells unlocked phones*. I could have gone with a reputable online provider but I was also short of time. I did get a receipt and full warranty with it though. I was hoping I could solve this myself to avoid having to rely on the shop, but we'll see how they are at after sales service tomorrow.
Thanks again.
* I did this for a reason, the networks don't sell unlocked phones and even pre-paid are network locked for up to the 12 months. We're leaving Ireland soon so this was a necessity.

LCD anyone?

I dropped my phone yesterday and cracked the screen to the point where it doesn't even light up. My softkeys light up fine and it still rings when I call it but the LCD is completely dead. Does anyone know where I can get a new one for a reasonable price? I'm so heartbroken!

trevoryour said:
I dropped my phone yesterday and cracked the screen to the point where it doesn't even light up. My softkeys light up fine and it still rings when I call it but the LCD is completely dead. Does anyone know where I can get a new one for a reasonable price? I'm so heartbroken!
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On Ebay, I've seen lcd replacements going for around $140. If I remember correctly Samsung replaces screens for around $180 I've heard.

Watanuki-Kun said:
On Ebay, I've seen lcd replacements going for around $140. If I remember correctly Samsung replaces screens for around $180 I've heard.
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Do you have a link. The cheapest I have found on ebay are over 200 and those come from China so who knows if they even work. Samsung charges $180 to replace a screen? Thats an awesome deal since you can't even buy the screen for that much from what I can see. Do you have a link to where I have to go to get Samsung to fix it?

trevoryour said:
Do you have a link. The cheapest I have found on ebay are over 200 and those come from China so who knows if they even work. Samsung charges $180 to replace a screen? Thats an awesome deal since you can't even buy the screen for that much from what I can see. Do you have a link to where I have to go to get Samsung to fix it?
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The link to Samsung for repairs is here http://www.samsung.com/us/support/service/request
Just for reference, to my best knowledge you can put practically any screen in there, whether it is a sprint, verizon, att etc.
For $150 http://www.ebay.com/itm/Sprint-Sams...114?pt=LH_DefaultDomain_0&hash=item3a7fe2094a
$150 http://www.ebay.com/itm/Samsung-gal...886?pt=LH_DefaultDomain_0&hash=item1c31813a16
$150 http://www.ebay.com/itm/Sprint-Sams...522?pt=LH_DefaultDomain_0&hash=item2c6d7f16fa
$160 http://www.ebay.com/itm/Samsung-Gal...337?pt=LH_DefaultDomain_0&hash=item3381127bf1
$169 http://www.ebay.com/itm/OEM-Samsung...324?pt=LH_DefaultDomain_0&hash=item3f23a6c7c4
It goes on and on

Watanuki-Kun said:
The link to Samsung for repairs is here http://www.samsung.com/us/support/service/request
Just for reference, to my best knowledge you can put practically any screen in there, whether it is a sprint, verizon, att etc.
For $150 http://www.ebay.com/itm/Sprint-Sams...114?pt=LH_DefaultDomain_0&hash=item3a7fe2094a
$150 http://www.ebay.com/itm/Samsung-gal...886?pt=LH_DefaultDomain_0&hash=item1c31813a16
$150 http://www.ebay.com/itm/Sprint-Sams...522?pt=LH_DefaultDomain_0&hash=item2c6d7f16fa
$160 http://www.ebay.com/itm/Samsung-Gal...337?pt=LH_DefaultDomain_0&hash=item3381127bf1
$169 http://www.ebay.com/itm/OEM-Samsung...324?pt=LH_DefaultDomain_0&hash=item3f23a6c7c4
It goes on and on
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Cool. I contacted Samsung via their online chat and the person I talked to said that they will replace my screen for $135. I can't believe its that cheap. As you can see you can't even buy the screen for that much. I'm going to put a formal request in and see if that price jumps up. If Samsung will fix it though then I'm thinking thats the way to go. Hopefully they don't care that I have my bootloader unlocked and have a custom ROM on it.

trevoryour said:
Cool. I contacted Samsung via their online chat and the person I talked to said that they will replace my screen for $135. I can't believe its that cheap. As you can see you can't even buy the screen for that much. I'm going to put a formal request in and see if that price jumps up. If Samsung will fix it though then I'm thinking thats the way to go. Hopefully they don't care that I have my bootloader unlocked and have a custom ROM on it.
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I'm pretty sure they will. If you had USB debugging enabled before your screen died, try to adb reboot download and flash back the stock ROM, just to be safe. Otherwise try and use the Volume Down+Home+Power combo then press volume down then power again to enter download mode (while the phone is off)
Sent from my SGH-I747 using Tapatalk 2

rani9990 said:
I'm pretty sure they will. If you had USB debugging enabled before your screen died, try to adb reboot download and flash back the stock ROM, just to be safe. Otherwise try and use the Volume Down+Home+Power combo then press volume down then power again to enter download mode (while the phone is off)
Sent from my SGH-I747 using Tapatalk 2
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Do you think they would care? I'm not sending it in under warranty. I'm paying to have them fix it. I would think at the very least might just flash a stock ROM and maybe relock the bootloader. I mean they do sell a developer version of my phone so its not like flashing a custom ROM is a capital crime. I think Verizon is the driving force between locking that down. Anyone have any insight into if this will be problem?

trevoryour said:
Do you think they would care? I'm not sending it in under warranty. I'm paying to have them fix it. I would think at the very least might just flash a stock ROM and maybe relock the bootloader. I mean they do sell a developer version of my phone so its not like flashing a custom ROM is a capital crime. I think Verizon is the driving force between locking that down. Anyone have any insight into if this will be problem?
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I think you'll be good due to the reasons you mentioned.
Worst that could happen is that they won't fix it and refund you.

Credrili said:
I think you'll be good due to the reasons you mentioned.
Worst that could happen is that they won't fix it and refund you.
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Alright the verdict is in. I sent the phone and I just got it back yesterday. The phone has a brand new screen but also has a brand new stock ROM installed. It appears that they slammed the factory load over my rooted ROM and unlocked bootloader, leaving me with 100% stock phone. Its annoying but I can understand why they would want to have a clean load on there so they can test all the phones functionality. The problem is my phone seems to have lost its ability to connect to 4g now. It connects fine to 3g but not 4g. I called Verizon and they believe the problem is phone related because when I put my SIM into my Galaxy Nexus 4g loads up just fine.
I went through the root/bootloader unlock process again so I could load my old ROM to see if my 4g would start working but still no love. Any thoughts on what I could try to resolve this?

trevoryour said:
Alright the verdict is in. I sent the phone and I just got it back yesterday. The phone has a brand new screen but also has a brand new stock ROM installed. It appears that they slammed the factory load over my rooted ROM and unlocked bootloader, leaving me with 100% stock phone. Its annoying but I can understand why they would want to have a clean load on there so they can test all the phones functionality. The problem is my phone seems to have lost its ability to connect to 4g now. It connects fine to 3g but not 4g. I called Verizon and they believe the problem is phone related because when I put my SIM into my Galaxy Nexus 4g loads up just fine.
I went through the root/bootloader unlock process again so I could load my old ROM to see if my 4g would start working but still no love. Any thoughts on what I could try to resolve this?
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I have a similar issue. Since the radios are integrated (right?) I am assuming my 4g is not fried (got it off eBay). I am thinking the connection between the 4g antenna and the radio is severed somehow. Haven't gotten around to checking it out (always on wifi) but when I do I'll try to update if I am successful with fixing it.

Probably worth going to a Verizon company store and get a new sim card. There free at company stores and 15.00 at retailers. But DON'T Dial *228 with a 4g phone, it can mess up the sim. After getting new sim, check radios and see what you have installed. I would try a few different one to see what works best with your phone and flash rpm also. If you unlocked, check it or run ezunlock again version 1.2 has been reported to work better than the latest.
Goid luck
See the Galaxy sIII shine via SynergyRom

podspi said:
I have a similar issue. Since the radios are integrated (right?) I am assuming my 4g is not fried (got it off eBay). I am thinking the connection between the 4g antenna and the radio is severed somehow. Haven't gotten around to checking it out (always on wifi) but when I do I'll try to update if I am successful with fixing it.
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Actually I got mine working. The issue was that Samsung didn't fix my phone. They replaced it with a new one and just reflashed the same IMEI. The problem was that whatever process they use to flash the IMEI doesn't jive well with Verizons registration system. I talked to customer care for a few hours and they finally said I should try a new sim card. I was scepitcal but the guy at the Verizon store activated a new SIM for me and after the phone powered back up I had 4g. Apparently the new SIM card retriggered whatever activation that was required to resync the all the numbers. Might wan to try getting a new SIM.
It now makes sense to me why my phone appeared to be wiped so thoroughly. It was actually a brand new phone. Not a bad deal for $135.

SM-G970U Refuses to Work on Carrier Network

So, I have an S10e (SM-G970U) that was bought from Verizon a while back. The phone was set up on a Verizon post-paid plan, but was later switched to prepaid. The phone worked fine for months, but about a week ago, the phone randomly stopped making and receiving calls, texts, and the ability to use mobile data. It was taken to Verizon, and they tried "all they could" in their words, which included a new SIM card, resetting network settings, and eventually a factory reset from settings. Nothing seemed to work, and they gave up, claiming it "seemed like a bad antenna." They did call their "tech support" who claimed the most recent Android 11 update supposedly caused an issue with mobile network connection with the Verizon S10e devices, which I haven't heard of, but didn't know. He claimed a reset would fix it.
Since none of that fixed it, it was taken to a shop to be inspected. They claim the phone has nothing wrong with it. So, that, in theory, rules hardware issues out. Their only claim was that when an AT&T SIM was inserted, it was able to connect to the network, but never tried to make any calls due to the SIM not being activated. I assume this is due to someone trying to "help" inserting an activated AT&T SIM into the slot when testing, which I assume ended up installing the carrier branded version of the firmware. They gave a couple possible reasons, but neither seemed to make sense.
Since it had the AT&T bloatware and was working with only AT&T SIMs, I decided to flash both the VZW G970U firmware (the earliest version I could to ensure the supposed "issue" from Verizon support wasn't a problem) and the G970U1 firmware. Both firmware flashes have seemed to have done nothing, as the phone is still having the issue. Most times, it will connect to the Verizon network, but the signal seems to rise and fall quickly (like the bars going from 5 to 1 to 3).. Still no calls, texts, or data, though. I have no idea what's going on, at this point, honestly. Any ideas?

Hardware problem

iBowToAndroid said:
Hardware problem
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LanGar21 said:
Since none of that fixed it, it was taken to a shop to be inspected. They claim the phone has nothing wrong with it. So, that, in theory, rules hardware issues out.
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If the people it was taken to were competent and did their jobs correctly (one of the best around, according to reviews and carrier recommendation), their diagnostic results show no hardware damage to the phone. Then again, their explanation for the problem was that it had been locked to ATT network (a Verizon bought phone that never had any affiliation with another carrier, aside from Verizon and a month-long stint with Straight Talk). Some idiot she knows that used to work for a Verizon retailer popped his ATT SIM in there, and it flashed ATT firmware.. Their POSSIBLE solution was to try and have it network unlocked from ATT. As we know, though, the IMEI obviously did not change, and the process of confirming the identifier is done on the mobile network level. Therefore, flashing a different carrier's firmware won't do much (permanently), aside from changing the boot screen and bloatware apps. We even tried to explain to the guy that the ATT SIM had never been popped in until after the problem began, as there was no reason to beforehand. I also mentioned I had flashed firmware multiple times before I ever came to him, to no avail. I should've pushed harder, but I had been out all day, frustrated and ready to go home.
It's been over a month since that issue began, and I haven't thought much of it lately.. We've since found her a new phone (and stowed the other one in a drawer). Those guys did blurt some moronic statements.. In hindsight, I'm not too sure I should trust their judgement after hearing what I did. Maybe it was an antenna issue or otherwise hardware, but I sort of assumed if anyone can happen to keep a repair shop open, they'd at least be able to complete the simple tasks fairly easy. I don't know. I'm not paying another repair shop to find out, though.

I had a very similar problem where my phone would just randomly lose all connection for about a minute, then it would reconnect I would start doing whatever I was and it would do it again and this one on for months. I took it to AT&t and they told me to replace the SIM which I did and it didn't work. after a couple updates it fixed itself.

Question An A52 4G Dilemma

So this past summer I purchased a 4G version of the A52 from Amazon, my main reason being it was cheaper than the 5G. Now I'm finding that this choice may be affecting my carrier situation. I am in the United States, and had Cricket Wireless at the time of purchasing the phone. It worked for about 4 hours, then the service quit on me. Apparently Cricket claimed that my phone did not have the proper technology, blah blah blah, something to do with the discontinuation of 3G and or VOLTE. This obviously does not make sense, since this phone is from 2021 and would not be made with old tech. Anyway, I got them to turn my sevice back on, after it being in a "suspended" state. It was still working for a while, and then some time in september I think Cricket sent a text to me (and my fiance as well, also has a phone cricket doesn't like) saying that they would start redirecting our calls to customer service to get us to "upgrade" since the phones would supposedly stop working completely in February or whenever 3G is supposed to go kaput. So, we switched to Mint, who claimed that our phones would both work on their network, and they did, except that the service sucks, even while being in a modest sized city. It also has little to no service at my work, and I'm convinced that T-mobile's service, at least through Mint, absolutely sucks.
So, my question is, what do you all suggest? Does anyone have this model, and what carrier are you with? What kind of luck (or lack thereof) has anyone been having?
Sorry if this has no place here, just doing all I can to get some answers

Well, I don't think I have a clear answer to your question, this is something that I found very very weird. I handed over a Galaxy S9+ to my fiancee who's carrier name I forget, I think it also got acquired by T-Mobile, but I'm not 100% certain. However, the phone didn't work properly. I can't remember what problems exactly it had but they were network related. Turns out that if you're going to change phones you need to go to a store for them to configure it and change it in their system. Otherwise it will either not work or not work properly.
And this was also the case with her sister who bought an unlocked, Mexican phone and she also had to take it to the store for them to configure it. It would have these problems unless she took it to them.
You would assume that all you need is to insert the SIM and it would work out the box but I don't know why this carrier had this method which just makes everything so annoying and complicated when it doesn't need to be. Oh and this isn't a one time thing, every time they changed phones they would need to do this! So you should probably look at going this route, it's my best guess.
EDIT: Oh and also before we knew this, we had also purchased a Galaxy Note 3 (which yeah it's old, but had 4G when I used it with my carrier and all of a sudden it turned to 3G when used on her carrier) so we ended up giving it away. So it was definitely a carrier problem. It was so annoying.