I have this phone from China. Problem is sim card slot n1 with LTE and 3g connection its not working. Works only with china telecom card. Phone is already modificated somehow so google services works well. Twrp is installed too. Do you know is there anyway to unlock simcard slot? Slot number 2 works with other cards but its only 2g. Maybe somekind custom rom or anything. I dont know is rooting help at all? This is realy sad situation for me. Phone is almost useles now. If somebody can help me its make me realy happy. THANK YOU!
Build number: lmy47x.g9209KEU2colb
sm-g9209
i have such problem. 1slot 4g 3g not working but 2slot working only 2g. phone from chinatelecom and phone without google services.
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Three network SIMs not working but O2 & Vodaphone SIMS ok-HELP! I'm really confused
Cannot find a solution either searching the forums or via Google so perhaps someone can help by answering this post:
Got an XDA Orbit that works fine when I insert either an O2 sim or a vodaphone sim (so the phone appears not to be locked) but not when I use a 3 (three) sim. When I insert a 3 (three) sim I get the message "Invalid or missing SIM card". I have 2x three sims and both do the same thing. However both the 3 (three) sims work fine in my XDA exec and Sony Ericson K610i so there appears to be no fault with the sim. So if the SIM appears to work and the phone appears to be unlocked what else is there?
I have considered upgrading the ROM but there seem to be a lot of people either turning this phone into a brick or breaking wifi (needed) while updating the ROM on the Orbit. If someone can point me to a rom that works without doing either that might be a solution.
Details of ROM XDA Orbit is running:
ROM version: 1.25.206.2 WWE
ROM date: 10/4/06
Radio version: 02.67.90
Protocol version: 4.1.13.28
ExtROM version: 1.25.206.101
Any thoughts or idea's welcome
PS. I have also tried inserting a little paper between the battery & the SIM as suggested in some of the forum posts which didn't work.
3 is a 3g network only, the Artemis is not a 3g phone.
Older 3 USIMS used to work, but when 3 noticed you were constantly roaming onto O2 (who provide 3 with their backup network, at a cost to 3) they blocked those SIMS. Newer ones simply don't work at all in 2.5g phones.
Upgrading the ROM would make no difference, you would need to change the handset to a different model to use the 3 network, but then frankly I never understand why anyone would want to.
i thought the same thing as the post above...but what made me wonder is why the 3 sim cards are working inthe xda 2s which is not a 3g phone.
maybe its not the 3 sim cards that are at fault here after....as hard as that is to belive
hey guys,
three sim cards will not function at all unless the phone is 3g enabled.
Remi
Even if the phone was 3g, 3 used to block IMEIs of phones not sold by them. Nice. Don't know if they still do that though.
update
arielc - my error, sim does not work in XDA2 (tested again), 3rd phone tested was a Sony K610i -> have updated initial post to remove error.
LargePig - The XDA Exec I have was bought from O2 and does work 100% (so far).
Gajet - I think you are right. Is there any way for the phone to fake to the sim that it is a 3G phone? I realise this is probably grasping at straws but thought I should ask just in case.
Assuming it is impossible to get the 3 SIMs to work any idea on what these are worth? I'm depressed askign this as it is a realy nice phone & I would prefer to keep it.
D1bbl3r said:
Gajet - I think you are right. Is there any way for the phone to fake to the sim that it is a 3G phone? I realise this is probably grasping at straws but thought I should ask just in case.
Click to expand...
Click to collapse
No the lack of function occurs when the SIM tries to register on the network I believe, so it instantly knows it can't register on the UMTS (3g) network, and because it hasn't tried it is blocked from registering on the GSM (2.5g) network.
Any 3g enabled phone should work, and there are 3g HTC pocket PC devices such as the Universal etc. but they all tend to be bulkier.
3 has to stop this behaviour because they have no GSM backup of their own and therefore they pay O2 to provide their backup, this means they make little (if any) money on those calls.
Personally I don't think 3 are as cheap compared to the other networks as they used to be, the other networks have had to try and attract customers back. You could get a SIM from the other networks for a fiver at the most. My personal recomendation at the moment is a T-Mobile Flext and Web & Walk Tariff.
As for the value of the 3 USIMS, Have a look on Ebay at what they are going for, they do have a sale value.
Hi. I have bought a brand new HTC Desire V dual sim.
I planned to use my normal number and 3g data-only sim for internet. (Because normal internet packages are very expensive. data-only plans are fine.)
Normal sim was working fine. as soon as i inserted 3g data-only sim, the phone crashed. it is not booting generally. when it boots, it reboots after 5-6 minutes. i have tried flashing its rom. factory reset, but this did not helped.
I have inserted that data-only sim card to my Galaxy S2. It also got crashed. not rebooting problem.. But just it shows bad imei code errror.
I dont know if data-only sim caused this or not. That data-only sim card is still working fine with usb 3g dongle.
I will take the phone to technicall services. But i dont know later should i try any different data-only sim cards on phone or not.
Have anyone else experienced something like this. Any idea ?
Regards
TeoFriendly said:
Hi. I have bought a brand new HTC Desire V dual sim.
I planned to use my normal number and 3g data-only sim for internet. (Because normal internet packages are very expensive. data-only plans are fine.)
Normal sim was working fine. as soon as i inserted 3g data-only sim, the phone crashed. it is not booting generally. when it boots, it reboots after 5-6 minutes. i have tried flashing its rom. factory reset, but this did not helped.
I have inserted that data-only sim card to my Galaxy S2. It also got crashed. not rebooting problem.. But just it shows bad imei code errror.
I dont know if data-only sim caused this or not. That data-only sim card is still working fine with usb 3g dongle.
I will take the phone to technicall services. But i dont know later should i try any different data-only sim cards on phone or not.
Have anyone else experienced something like this. Any idea ?
Regards
Click to expand...
Click to collapse
Wrong forum. This is the desire (bravo) section.
Hello Everyone
I have Galaxy S3 i747m from Rogers. I went to Europe for holidays. I unlocked my phone in Poland. After that phone was working ok but internet was very slow. It was working on Edge although everywhere was LTE range. I was changing carriers-sim cards but was the same problem. Then I went to UK. There my phone stopped reading any network especially when I was in the building. My current carrier is O2. My phone sometimes says not registered on network or says nothing. I have no connection at all. I dont know what to do now.
I flashed a new rom from this forum Hyperdrive which is nice but it didnt change anything. I was also installing those two files ..modem_XXDME4__ and modem+ddemg2 but my phone stopped working at all. So I had to format and flash a rom again.
Please help me guys because I want to destroy this phone with an AXE. I give up.
Not sure what the situation is in Europe, but I had a similar problem when I bought an unlocked i747M and attempted to use it on my AT&T network in the US.
Phone calls were fine, but way slow data connectivity.
US LTE does not support International/Canadian phones. Something with the modem and bands used here vs Canada.
Might be the same situation where you are. The modem may not be compatible with the European network bands.
I know DocHoliday77 helped me with mine. He made it very clear you CAN NOT change the modem version. I have the US version now and all is fine.
That's the only thing I can think of too tbh. That or something is corrupt or there's some sort of hardware issue. Sorry, I know that doesn't help much.... Hopefully someone else may have thoughts to add...
Sent from my SAMSUNG-SGH-T999 using Tapatalk
Hello everyone,
My Xiaomi MI6 is detecting the SIM CARD but he doesn´t get any network signal. I already tried with different SIM CARDs but none of them worked it.
I´m thinking if maybe the problem is the antenna (cable) and I have to replace it. Can anyone confirm if I´m right?
Thank you s much for your support.
Hi everyone!
I've surfed all I've found here about Xiaomi Mi A2 Lite and the bands/carrier problems here in the USA, but I can't solve my problem. Here are the facts:
I have a Xiaomi Mi A2 Lite Global Version, Android 10 updated, not flashed, not root, works perfect and I love it.
I moved to USA from Spain 1 month ago, I got a new SIM from T-Mobile and the first two days worked, but suddenly lost the connection, not only data but calls and messages.
If I change that SIM with another one, (also T-Mobile, my boyfriend bought it the same day, same plan), then it works again but after some hours not signal again.
I've been doing this SIM change over the last 2 weeks, but it is really uncomfortable, I've tried to get a pattern but it doesn't depend on the time that the SIM is on the phone (it can be operative 2 hours or 2 days) nor in the data used or in the area.
When I lost the signal, the SIM is recognized but is like I was inside a deep cave with no coverage.
There is no way to recover the signal, I've tried airplane mode, rebooting several times, reinserting SIM, port change, even changing the SIM and changing it back, but nothing.
When I have signal I get T-Mobile 4G LTE and runs smoothly.
My SIM ports are fine because both read my Spanish SIM card, and the SIMs cards work perfectly because my bf can use both.
I don't know if is a network compatibility problem, he has a POCO X3 that supports the same bands and he gets signal all the time.
I bought a new SIM card from Mint just to check if it was about the carrier, and It does not work either, even when the phone compatibility says that should work.
I'm stuck now
Any advice? Should I buy a new phone to live in the states? (I'm going to be here for a year and I'm spending so much money on moving in that I would prefer not)
Thank you in advance!