Hi, I recently bought a used i9103 on eBay that was imported from an overseas country (Still not sure which country), seeing as it was never sold in the US. After using it a few weeks, I notice that the signal jumps radically, even when the phone is stationary.
So my question is, which baseband/modem/radio would be best? (Specifically for T-Mobile USA)
As a note, I am in a major metro zone and other phones in this same area get a strong and consistent signal.
The baseband is currently XXLQ3.
Thanks.
You can try DDLP3 baseband from Indian ICS XWLP8 rom. That's the latest and that's why it should be the best one.
I flashed the modem alone from XWLP8. I'll report back in a few days if there's any difference. I guess I should also ask if there's any difference in hardware in the models shipped to different regions? Or is there only one model, just with different software?
There is only one model as far as we know, at least there weren't any others reported.
Just an update, flashing the Indian radio didn't seem to help at all. Signal still jumps up and down wildly. Turning on Data Roaming did not help either.
Related
Hello,
I bought my Nexus 5 on the 11th of December 2013 and it had been working flawlessly ever since. Since last week, I started noticing the occasional signal drop and I'd be out of cell reception but would usually be back up within no time. However, yesterday, out of the blue I'm travelling on the highway and my signal strength disappears never to come back again. I've tried the following:
- Restore old backup (including EFS)
- Went back to stock from PA
- Upgraded to the latest radio
- Took back cover off to see if anything was wrong but found nothing.
- Tried another SIM card
Nothing worked. My SIM card works fine in another phone. Everything else such as WiFi and Bluetooth works flawlessly but I just don't get any reception.
This is very disappointing and I have my fingers crossed hoping someone can help me with this since I didn't plan on getting a new device for at least another year especially after paying $520 USD for my phone here in my country.
Thank you for looking.
im having a similar problem with the radio after the last few otas. im getting a lot of dropped calls on 3g aws...
im going to try to revert to an old radio as i don't think this is a hardware failing issue..
Sent from my Nexus 7 using Tapatalk
Flash stock firmware with fast boot. If its the same, its a carrier issue....call them to see. Or its hardware failure.
just wanted to post my fix for this issue - very disappointed with Google that i had to do this...my provider is mobilicity canada (3g aws band fyi)
flash krt01b radio from this thread...
http://forum.xda-developers.com/showthread.php?t=2514095
this is *not* a carrier or hardware issue (at least in my case)
seems others are having same issue
https://code.google.com/p/android/i...s Owner Summary Stars&groupby=&sort=&id=70878
Then it is a carrier issue....cause on Telus in Canada....never had an issue with any radio version. ?
telus would have a stronger overall signal but uses AWS band for lte which is different than mobilicitiy 3g aws...
I'm not disagreeing.... Just saying its the carrier....not Google.
See my point?
KJ said:
I'm not disagreeing.... Just saying its the carrier....not Google.
See my point?
Click to expand...
Click to collapse
are you saying mobilicitiy is purposely weakening their cell signal cause they are almost bankrupt ?
i still blame google i had no issues with the radio before they borked it...
nolook said:
are you saying mobilicitiy is purposely weakening their cell signal cause they are almost bankrupt ?
i still blame google i had no issues with the radio before they borked it...
Click to expand...
Click to collapse
Just saying that unless many have the issue with the phone or radio, then its an issue.....if not, it isnt .
So in this case, it leaves hardware or carrier....assuming a stock flash didn't help.
If flashing another radio helps the OP...awesome!! But the new radio does work fine for the mass majority.
Hope it does work for him tho!
Hi there.
I have just got a used-N5 on the Internet. It is a D821 (for Indonesia market I think).
Everything is fine except the LTE connection. (2G and 3G connection is normal)
The LTE problem is:
The searching speed is slow.
Even if LTE is connected, the response time and connection speed is extremely slow.
I have taken out my SIM card, and insert it into another N5 (D821) right next to this phone.
The speed is 10 times faster.
I am using CSL in Hong Kong, which the LTE is band 3 and 7 (1800 / 2600).
Baseband is updated to the latest version.
APN setting is correct.
No matter which ROM and kernel I use, the LTE problem exists.
Anyone have idea how to fix it?
Thank you very much!
y2kbugleung said:
Hi there.
I have just got a used-N5 on the Internet. It is a D821 (for Indonesia market I think).
Everything is fine except the LTE connection. (2G and 3G connection is normal)
The LTE problem is:
The searching speed is slow.
Even if LTE is connected, the response time and connection speed is extremely slow.
I have taken out my SIM card, and insert it into another N5 (D821) right next to this phone.
The speed is 10 times faster.
I am using CSL in Hong Kong, which the LTE is band 3 and 7 (1800 / 2600).
Baseband is updated to the latest version.
APN setting is correct.
No matter which ROM and kernel I use, the LTE problem exists.
Anyone have idea how to fix it?
Thank you very much!
Click to expand...
Click to collapse
Questions belong in Q&A.
Every D821 is the same, every D820 is the same. There are no specific regional versions for a D821.
The ROM and kernel have nothing to do with your network connectivity.
Try flashing a different radio version.
Lethargy said:
Questions belong in Q&A.
Every D821 is the same, every D820 is the same. There are no specific regional versions for a D821.
The ROM and kernel have nothing to do with your network connectivity.
Try flashing a different radio version.
Click to expand...
Click to collapse
Excuse me, do you mean try flashing a different baseband version?
I have tried the one comes with Kitkat (4.4.4) but no luck.
I know every D821 should be the same, but I just wonder why under same configuration (ROM, kernel, baseband), but the result is different.
I suspect if my D821 is a remarked D820.
Thanks.
y2kbugleung said:
Excuse me, do you mean try flashing a different baseband version?
I have tried the one comes with Kitkat (4.4.4) but no luck.
I know every D821 should be the same, but I just wonder why under same configuration (ROM, kernel, baseband), but the result is different.
I suspect if my D821 is a remarked D820.
Thanks.
Click to expand...
Click to collapse
Yeah, radio and baseband are the very same.
With the exact same software, the result can be different because not every device is made the same; the perfect Nexus 5 does not exist.
The only difference between a D821 and a D820 are the LTE bands it can access, everything else including the 2G/3G bands are the same. If it was actually a D820, you'd probably get no LTE at all, unless your carrier supports one of the bands a D820 can access; it would not mean you get "slower" or "worse" LTE performance - you'd either get it or you wouldn't.
It might just be a hardware issue if you think it's slow.
Lethargy said:
Yeah, radio and baseband are the very same.
With the exact same software, the result can be different because not every device is made the same; the perfect Nexus 5 does not exist.
The only difference between a D821 and a D820 are the LTE bands it can access, everything else including the 2G/3G bands are the same. If it was actually a D820, you'd probably get no LTE at all, unless your carrier supports one of the bands a D820 can access; it would not mean you get "slower" or "worse" LTE performance - you'd either get it or you wouldn't.
It might just be a hardware issue if you think it's slow.
Click to expand...
Click to collapse
I believe it is a hardware issue as well
If someone on xda give me a hope then I don't need to bargain with the shop
Thanks :good:
Hi all.
Last night I have brought it to the shop and tested there.
The LTE speed is very normal... I cannot trigger the problem by any means...
I suppose it to be the signal reception issue.
I left the shop and found the speed might be somehow dropped, but it could be still considered as normal.
I went home, re-flash another ROM and prepare for normal use.
However, the LTE becomes abnormal again...
I have found an interesting thing.
I have flashed stock ROM and OEM LOCK before bringing back to the shop, and it is normal speed.
I went home, OEM UNLOCK and flashed a custom ROM, it is abnormal.
Now, I have just re-flash the STOCK, and the LTE is not so normal.
But after OEM LOCK, it seems to be fine.
I believe there is no relation, but is it possible the OEM LOCK to do with the LTE issue?
Thanks. :crying:
y2kbugleung said:
Hi all.
Last night I have brought it to the shop and tested there.
The LTE speed is very normal... I cannot trigger the problem by any means...
I suppose it to be the signal reception issue.
I left the shop and found the speed might be somehow dropped, but it could be still considered as normal.
I went home, re-flash another ROM and prepare for normal use.
However, the LTE becomes abnormal again...
I have found an interesting thing.
I have flashed stock ROM and OEM LOCK before bringing back to the shop, and it is normal speed.
I went home, OEM UNLOCK and flashed a custom ROM, it is abnormal.
Now, I have just re-flash the STOCK, and the LTE is not so normal.
But after OEM LOCK, it seems to be fine.
I believe there is no relation, but is it possible the OEM LOCK to do with the LTE issue?
Thanks. :crying:
Click to expand...
Click to collapse
Bootloader lock/unlock state has absolutely nothing to do with your issue.
The ONLY difference between having it locked/unlocked is so you can flash images. It does NOT affect anything else.
I am a web programmer. I always suspect something strange when something cannot be explained (bugs in coding, I mean)
I have tested several times today. Locked bootloader still gives a poor LTE result.
I really have no idea why there is LTE problem...
y2kbugleung said:
I am a web programmer. I always suspect something strange when something cannot be explained (bugs in coding, I mean)
I have tested several times today. Locked bootloader still gives a poor LTE result.
I really have no idea why there is LTE problem...
Click to expand...
Click to collapse
Again, bootloader state affects nothing but the ability to flash images.
Yes I understand.
Just trying everything to find out a reason...
I am on my 3rd S6 now in 3 weeks due to rubbish reception. Im lucky to have 1 bar (-113 db) of 4g signal in my town which has full 4g coverage. If I put the sim card into my G3 or M8 I instantly get full 4g coverage (approx -80 db). Now this is clearly a widespread issue as a quick search of google brings up people all over the world on EE, Vodafone, Virgin, AT&T and sprint to name a few. Just wondering if anyone else has this issue. Im convinced its an issue that can be sorted with a software update to the modem but then who knows lol.
I got G920i model and I am using it in Canada. For me, the network is constantly fluctuating and it is stuck at -99db =\. I thought it could be hardware, but it is widespread. I am gonna get Canadian Galaxy S6 version to test this. If that has same problem, then its all S6 variants.
I hope its software because I love this international model and it has AWS (B4) that works on my carrier!
I am on latest 5.0.2 BOF6 (June 20 build). Has this network reception problem fixed in 5.1.1???
No I updated the modem first on mine to the 5.1.1 modem and it made absolutely no difference. The updated the whole rom but again no difference. Im with you in hoping it can be sorted with a software tweak to the modem. Maybe by increasing the tx power of it. But its certainly widespread so just need samsung to take note and do something about it.
Hmm...might be an antennae hardware issue. Bring back your S6 to Samsung for warranty check...
This is my 3rd one now with the same problem. The odds of 3 handsets having the same fault are pretty big. Coupled to the fact there are hundreds of people with the same problem. I know that on the old s4 and a few other phones there were apps to actually increase the tx power of the on board radio. Im convinced its just a snag that can be sorted with a software tweak.
My OnePlus One is on latest cyanogen 12.1, completely stock and unrooted. I am noticing high battery drain on cell stand by (42%)
and of that 52% of the time there is no connection to carrier.
Is there a fix for this issue? My wife's Note Edge (SM-N915G on stock KitKat) has no signal issues with T-Mobile. but my OnePlus One show no connection most of the time. Is this a CM12.1 issue or is this a known issue with OPO and T-Mobile combination?
Appreciate the help.
Which baseband?
This could just be because of where you're located. The OPO only supports one of T-Mobile's LTE bands, band 4, while the Galaxy Note Edge supports all three, including band 12, which has much greater range and building penetration.
All of the recent T-Mobile commercials touting improved coverage area and better building penetration are based off of using band 12 on their newer devices which support VOLTE (voice over LTE). All of their new towers incorporate this band in areas that previously had little or no coverage (especially rural and suburban).
If you're in an outlying area with poor band 4 coverage your handset will be constantly trying to lock in on the weak signal and shifting from 3G, 4G, and LTE. Doing this also greatly reduces data transmission speed and reduces battery life.
If you're in an urban area with strong signal acquisition, then forget what I just said, you have another issue.
Hope this helps.
i used OPO on tmobile and it worked fine, depends on many factors including location, time of day and of course the bands used by the device.
karthics4 said:
i used OPO on tmobile and it worked fine, depends on many factors including location, time of day and of course the bands used by the device.
Click to expand...
Click to collapse
I see from your profile that you reside in the UK. The OP doesn't list his, so I'm operating under the assumption that he's here in the states. My observations and comments in the post above yours, are strictly based on what I know about this device and with T-Mobile USA, as I'm unfamiliar with its operations in other countries.
Odysseus1962 said:
I see from your profile that you reside in the UK. The OP doesn't list his, so I'm operating under the assumption that he's here in the states. My observations and comments in the post above yours, are strictly based on what I know about this device and with T-Mobile USA, as I'm unfamiliar with its operations in other countries.
Click to expand...
Click to collapse
Apologies, should have included location detail. This OPO is in Austin, tx so its metro area.
Baseband: DI.3.0c6-00241-m8974aaaaanazm-1
Cynogen version: 12.1.1-YOG7DAS2K1
Kernel version: 3.4.67-cyanogenmod-g9220ae3
Build: LMY48Y
Will I get better luck on AT&T with OPO?
Agent5150 said:
Apologies, should have included location detail. This OPO is in Austin, tx so its metro area.
Baseband: DI.3.0c6-00241-m8974aaaaanazm-1
Cynogen version: 12.1.1-YOG7DAS2K1
Kernel version: 3.4.67-cyanogenmod-g9220ae3
Build: LMY48Y
Will I get better luck on AT&T with OPO?
Click to expand...
Click to collapse
You might, but I can't say for sure. The OPO supports 2 of the 3 bands AT&T utilizes, band 4 (like T-Mobile) and band 17. So you have more of a chance. Bear in mind, that AT&T is considerably more expensive than T-Mobile and that they have roaming agreements with each other, where if you can't get any signal for telephony you'll roam off the other's network.
Generally speaking AT&T has more coverage, because it's an older more mature company with a more established infrastructure. T-Mobile is more of an upstart, but is rapidly expanding with a newer technology. Like I said in the previous post, explaining why your wife's Note got so much better reception, newer T-Mobile devices which support all 3 LTE bands (2,4, & 12) get better reception and probably twice the coverage than what is possible with the OPO.
I hope this helps explains things.
Odysseus1962 said:
I see from your profile that you reside in the UK. The OP doesn't list his, so I'm operating under the assumption that he's here in the states. My observations and comments in the post above yours, are strictly based on what I know about this device and with T-Mobile USA, as I'm unfamiliar with its operations in other countries.
Click to expand...
Click to collapse
yes i do reside in the UK but bought my OPO in the US when i lived there back in 2013 and used it on Tmob. according to the website it works in the UK on Three and EE(tmobile/ orange). i use it on three and get 4g and 3g with no probs. i do like the tmobile usa plan of $40 unlimited all
Since stock 12.1 update, I've noticed mobile network keeps dropping and in return draining the battery quickly.
Thinking it's the update, I've installed custom 12.1 ROM, but the problem persisted.
With further searching, I've found fix here.
https://forums.oneplus.net/threads/cos-12-1-non-rooted-user-w-mobile-connectivity-issues.361244/
Goto APN settings, take note of current APN's.
Reset to defaults.
Copy previous APN values to currently selected APN.
Save then reboot phone.
If above doesn't work, try here.
https://forums.oneplus.net/threads/update-17-09-15-cos-12-1-yog4pas1no-bugs-discussion-thread.349560/
Scroll down to LTE issues and try the method described. Just note that it suggest deleting other APN, but I recommend against it because it can interfere with roaming.
byoungc said:
Since stock 12.1 update, I've noticed mobile network keeps dropping and in return draining the battery quickly.
Thinking it's the update, I've installed custom 12.1 ROM, but the problem persisted.
With further searching, I've found fix here.
https://forums.oneplus.net/threads/cos-12-1-non-rooted-user-w-mobile-connectivity-issues.361244/
Goto APN settings, take note of current APN's.
Reset to defaults.
Copy previous APN values to currently selected APN.
Save then reboot phone.
If above doesn't work, try here.
https://forums.oneplus.net/threads/...2-1-yog4pas1no-bugs-discussion-thread.349560/
Scroll down to LTE issues and try the method described. Just note that it suggest deleting other APN, but I recommend against it because it can interfere with roaming.
Click to expand...
Click to collapse
Thanks, so I am not the only one experiencing network connectivity issues. I do suspect this software related to some extent. Will try the fix and report back.
Answer!
Agent5150 said:
My OnePlus One is on latest cyanogen 12.1, completely stock and unrooted. I am noticing high battery drain on cell stand by (42%)
and of that 52% of the time there is no connection to carrier.
Is there a fix for this issue? My wife's Note Edge (SM-N915G on stock KitKat) has no signal issues with T-Mobile. but my OnePlus One show no connection most of the time. Is this a CM12.1 issue or is this a known issue with OPO and T-Mobile combination?
Appreciate the help.
Click to expand...
Click to collapse
All phones can now get WiFi calling. Just download digits and sync it. Download it on your main driver and sync it. You can use the DIGITS to call using WiFi from any device using your number.
Trikkx said:
All phones can now get WiFi calling. Just download digits and sync it. Download it on your main driver and sync it. You can use the DIGITS to call using WiFi from any device using your number.
Click to expand...
Click to collapse
Digits?
Have some strange reception misses in Dallas, where AT&T reception is normally rock solid. Back in my HTC m7 days flashing the right radio made a world of difference on my tmobile version. Would flashing the 930A modem make a difference on my G930F ?
juandhi said:
Have some strange reception misses in Dallas, where AT&T reception is normally rock solid. Back in my HTC m7 days flashing the right radio made a world of difference on my tmobile version. Would flashing the 930A modem make a difference on my G930F ?
Click to expand...
Click to collapse
Unfortunately I don't have answer for you but a question, as I may be getting into a similar situation as you. The version you have is the international , as I see, where did you buy it? I know they're available on Ebay and now on Best buy so i was curious if the reception issue was across all model "F's" no matter the purchase location? Also do you find yourself missing text messages only to get a mass of them a few hours earlier (i had this issue with a international Z3 compact) ? I really dont want to have to get the Snapdragon variant with the lesser batt life and crap ass carrier bloat but if reception is an issue, I may be stuck.. I'm in San Antonio, TX by the way. Thanks in advance!