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Sim card and battery drain

Not sure if this has any real correlation but I figure I'd share. Long story short, I had been getting horrible battery life all day at work. Phone wouldn't even charge. After work went to T-Mobile store and had a new sim card placed in the phone and instantly the battery drain disappeared.
I was using the battery widget and noticed drain as much as -750mA. Soon as the new card, -2mA. I had restarted the phone several times already and it never drained this slowly. Only after the new card. Just thought I'd share.
Sent from my LG-P999 using XDA App

kangxi said:
Not sure if this has any real correlation but I figure I'd share. Long story short, I had been getting horrible battery life all day at work. Phone wouldn't even charge. After work went to T-Mobile store and had a new sim card placed in the phone and instantly the battery drain disappeared.
I was using the battery widget and noticed drain as much as -750mA. Soon as the new card, -2mA. I had restarted the phone several times already and it never drained this slowly. Only after the new card. Just thought I'd share.
Sent from my LG-P999 using XDA App
Click to expand...
Click to collapse
I might give this a try as well. I got 9 hours today with moderate use. Just web surfing and texting, and about 10 minutes of streaming radio, actually.
I need to know the cause since I only have another 7 days to take it back.
(And yes, I know the battery level readings are messed up, but there's no messing up the fact it was on the charger all night, and then I went from 100% to 1% in 9 hours.)

Interesting. I just used my old sim from my g1. Time to rye three new sim then.
Thanks for the notice!
Sent from my LG-P999 using XDA Premium App

Here is the visual evidence. This is with the phone on the charger. You see many times that it wasn't even charging and at times discharging. The huge green line is after the new sim.
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Sent from my LG-P999 using XDA App

It's a brand new 4g network doesn't it make sense to get a fresh sim, especially if this is your frist 4g phone.
The sales chick.... wait a second that's a new term "sales chick"
Well the sales chick specifically told me she needed to give me a fresh sim so I would not have any problems with reception.

If I pop in the new sim card will my phone number transfer automatically? I know in europe the phone numbers are locked to the sim card.
Sent from my LG-P999 using XDA App

kangxi said:
Not sure if this has any real correlation but I figure I'd share. Long story short, I had been getting horrible battery life all day at work. Phone wouldn't even charge. After work went to T-Mobile store and had a new sim card placed in the phone and instantly the battery drain disappeared.
I was using the battery widget and noticed drain as much as -750mA. Soon as the new card, -2mA. I had restarted the phone several times already and it never drained this slowly. Only after the new card. Just thought I'd share.
Sent from my LG-P999 using XDA App
Click to expand...
Click to collapse
I'm going to do that tomorrow then, i have my sim from my blackberry 9700 then to hd2-g2-now the g2x. I believe i don't have the "4g" sim-card then.

there is no "4g" sim card
there are only newer sims and older sims. older sims have trouble connecting to some of the newer towers, usually if they are over 1 1/2-2yrs old you should probably get it switched out for a newer style. most stores should do this for free.

Those swings in reported battery are most definitely from misreporting drivers.
...and swapping the sim card you pulled the battery, which also helps to throw things out of whack.
I dont see any correlation to sim card and battery life in this instance...you just happened to be swapping a sim at the time.

jink25 said:
Those swings in reported battery are most definitely from misreporting drivers.
...and swapping the sim card you pulled the battery, which also helps to throw things out of whack.
I dont see any correlation to sim card and battery life in this instance...you just happened to be swapping a sim at the time.
Click to expand...
Click to collapse
FWIW, it really could be the SIM. I had a similar problem with my Nexus One - high battery drain and inability to hold a 3g signal in a solid 3g zone. T-Mobile suggested a SIM swap, which I thought would do nothing. Wrong. 3g signal locked and stayed locked and battery drain came back to normal, probably because the phone wasn't constantly seeking for 3g.
That SIM failed, BTW. Used to hold 3g well and then it stopped.

I changed my sim and i dont really see a big difference. Ill give it a few days.

DebauchedSloth said:
That SIM failed, BTW. Used to hold 3g well and then it stopped.
Click to expand...
Click to collapse
Try setting your phone to WCDMA Only so it doesn't keep seeking between 2g/4g (this really sounds like the N1 bug)

As a T-Mobile employee I can tell you that you need a new sim in all of the 4G phones G2X, MyTouch, G2, and Galaxy 4G. your experience with the new HSPA network will be directly affected with these phones and the old 2G sims, guaranteed. It only makes sense that when the new network was implimented that a new sim would be part of this puzzle. The sim is your only connection to the network, so I'm totally perplexed as to why this is even in question. The reason you are seeing such high battery drain rates is because the old sim is not connecting to the network properly. I change out customer sim cards all day long. The new sim cards are designated with a TM9073 on the back of the card if you are questioning what kind of card you have. Everyone at my store is well aware of this and whenever a 4G phone is sold a sim swap is performed to make sure of a good experience. Now to complicate things there are some bad sims floating around that are 3G/4G sim cards, best way to descibe them is that the cell on the back of the card is faded looking in either a very small square or very large one. If you have a "good" 3G/4G sim the size of the cell will be in between these two sizes and it will be well defined and not look faded. if you have been with T-Mobile longer then 2-3 months you may need a sim swap which is free as long as you are not replacing a lost or stolen sim in which case the cost is $19.99. If you have been a customer for two years or more you Definately need a new sim with a 3G/4G phone. T-Mobile has released very little info about this and even a lot of the new phones still are prepackaged with the not so good sims. If the people working at your local Authorized T-Mobile Retailer don't know this I'm not surprised. Do yourself a favor, before you fly the handle about bad battery life or poor reception with this phone check your sim and if need be swap it for a new one, it's free. Hopefully this helps

My G2X came prepackaged with the 4G TM9073 and still had battery drain issues, resets and lockups.
Has anyone received a different sim than this with their G2X?
For all the users that followed the proper protocol and used the sim that came with the phone I dont see this as being the issue for battery drain problems. It has been documented that there are several software issues related to battery drivers, and possibly even a hardware issue with charging via wall adapter.
While on the topic of sims though...DO NOT touch the contacts on the sim, leaving oils and fingerprints on it can cause issues...have seen it several times as an issue in projects I have worked on manufacturing embedded devices.

Lower cellular signal on n5 than on my g2

I found this very interesting i usually get one bar at my house with nexus 5 and i consistently get 3 with the g2 still love my nexus 5 but just kind of strange
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sent from my lg g2

The bars are nothing to go by really. You would need to compare db or asu in Settings > About phone > Status

Always been the same for me, worse signal reception on the N5 compared to my Motorola Razr i or Moto G....
N5 on the left and Moto Razr i on the right.
Both phones have new O2 sim cards inserted.
The N5 has been tested by the engineers at LG (nearly four weeks away for this testing / repairs). Nothing really to note on the engineers report.
I sent lots of photos with the phone and talked in detail with the people at LG over the relatively poor signal with the phone when using O2, 3 or Vodafone on the N5 compared to other phones that I have and what I would expect.
As good as the phone is it has been a let down for me with the strength of its signal capability. I have tried the different radio versions with no real difference.
There are times when it is really good but I just know there are plenty of other times when it is very poor compared to the other phones noted.

vimesUK said:
Always been the same for me, worse signal reception on the N5 compared to my Motorola Razr i or Moto G....
N5 on the left and Moto Razr i on the right.
Both phones have new O2 sim cards inserted.
The N5 has been tested by the engineers at LG (nearly four weeks away for this testing / repairs). Nothing really to note on the engineers report.
I sent lots of photos with the phone and talked in detail with the people at LG over the relatively poor signal with the phone when using O2, 3 or Vodafone on the N5 compared to other phones that I have and what I would expect.
As good as the phone is it has been a let down for me with the strength of its signal capability. I have tried the different radio versions with no real difference.
There are times when it is really good but I just know there are plenty of other times when it is very poor compared to the other phones noted.
Click to expand...
Click to collapse
Motorola has been making cell phones longer than anyone....and radios.
Don't compare any phones radio to most Motorola's anyway.

It's safe to say the radios, or something in 4.4 have issues on the Nexus 5 regarding radio performance and reception. I can't say my signal is ever superb (t-mo MD); however I have often notice data stalls. Perhaps these are related issues?
I've started using Connection Stabilizer to resolve the data stall issues, if you check the logs you will likely see it working. I highly recommend.
https://play.google.com/store/apps/details?id=com.connectionstabilizerbooster

kj2112 said:
Motorola has been making cell phones longer than anyone....and radios.
Don't compare any phones radio to most Motorola's anyway.
Click to expand...
Click to collapse
You might have a point. It is just frustrating coming from a phone(s) which has virtually zero signal issues to one which is relatively bugged by them. Sometimes if I see no signal, when it has been in my pocket for a while, toggling it into airplane mode and then off again will restore it.
I am, overall, most impressed with the N5, it is just its ability to maintain a good and strong signal over that of what I have been used to which is most frustrating. I did not realise how bad it was until I went back to the Razr when the N5 was with LG for inspection / repairs for nearly a month.

Just to add that when I was using the Moto G it had an issue too with low or no signal after it had been in standby. Thankfully they fixed that one with the update...
The update is version number 174.44.1 and it has been reported to be pushing out to US and UK models of the Moto G, but should be rolling out to the rest of the globe soon enough. On the change log is a fix for a bug that had been causing cell signal loss for users, a fix for low call volume, a wallpaper cropping issue, and a trouble with USB on the Go.
Click to expand...
Click to collapse

I been complaining here for this on a very long long time
I even got banned 2 Times for complaining too much.

markdapimp said:
I been complaining here for this on a very long long time
I even got banned 2 Times for complaining too much.
Click to expand...
Click to collapse
Why not just sell it then??

kj2112 said:
Why not just sell it then??
Click to expand...
Click to collapse
I sold 1 of them the other Nexus 5 is sitting as a dev/experiment phone

drops network connection during calls

Hey guys
Got me sim-modded photon q on ebay.
Thing is, it keeps disconnecting voice calls and showing me it lost the network (the reception strength bar icon goes black on the inside) and then not finding it again until I restart the device. It drops out only during calls, don't seem to have that problem when using internet/data
I'm using CM11 msm8960 on congstar germany (aka t-mobile)
Things I've tried:
Resecuring the sim
Toggle NFC, wifi, bt
Got any ideas?
material for thought.... might be related to low battery... *seems* not to happen during battery at over 80

gurila said:
Hey guys
Got me sim-modded photon q on ebay.
Thing is, it keeps disconnecting voice calls and showing me it lost the network (the reception strength bar icon goes black on the inside) and then not finding it again until I restart the device. It drops out only during calls, don't seem to have that problem when using internet/data
I'm using CM11 msm8960 on congstar germany (aka t-mobile)
Things I've tried:
Resecuring the sim
Toggle NFC, wifi, bt
Got any ideas?
material for thought.... might be related to low battery... *seems* not to happen during battery at over 80
Click to expand...
Click to collapse
In the earlier revision of SIM mod done by CornholioGSM, the SIM ground was taken locally from the phone shielding and not wired directly from the ground pin of the original embedded SIM IC.
Some SIM cards work fine with this, but some are not stable when it's wired this way.
In my case, I had the same issue - occasional loss of SIM connection, usually during calls, needed to reboot to reinitialize the SIM.
You have too options:
1. Fix the SIM mod by adding the missing ground wire between the SIM slot and the embedded SIM IC spot.
2. Ask your network provider for a SIM replacement. In my case, I persisted bugging Vodaphone CZ until the third SIM I've got from them finally worked without issues, despite the ground being connected locally at the SIM slot. (I've got it fixed this way for me before we realized that the issue is caused by not using the SIM specific ground point. So I'm still on the earlier SIM mod variant - I haven't found the time for the SIM mod rework yet and I'm not pressed to do it now, when using the SIM that works fine.)

@gurila
half / temporary soluton you make set a WCDMA only i have that same issue if you dont have time to fix the simmod issue,
pickup from dial pad * # * # info # * # * (*#*#4636#*#*) , enter to phone information , scroll down and set WCDMA only
(for me this setting help to allways connection signal back when was lost)
I aslo have old simmoded photon without correclty grounded wire.

can this fix be done easily?
if so could someone please help out with some pictures?
Gesendet von meinem PHOTON Q mit Tapatalk

comstyle said:
can this fix be done easily?
if so could someone please help out with some pictures?
Gesendet von meinem PHOTON Q mit Tapatalk
Click to expand...
Click to collapse
is you asking about hard fix look on this below picture missing conneciton is mark on green
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"missing" this may not be the correct term because ground is connected.,.. but is not taken from original embedded SIM IC what is mark on this photos ( but from other place on the phone) and that is a reason of signal issue
(sorry for my eng.)

still work in progress
@kabaldan and @niko99 thanks for the help.
 @comstyle is the guy i bought the xt897 from, and he opened it for me yesterday and we took a look inside... the grounding was already there. so it seems not to be the problem... he did put in new wires and clearned them up,... unfortunatly it has since it has gone from bad to worse
so FYI, the grounding seems not to be the problem with this bug.
I have ordered a new sim from the provider, let's see if that helps.
I DOES seem that the problem occurs when the battery is lower (no problems above 80%, somewhat at 60%, constant uder 40%)
nico, i will try the WCDMA trick... thanks... update once I have it...

Hi, guys!
My photon is affected by same issue. Sim mode have done together with colleague of mine.
Ground is connected properly.
My observation is: this issue occurs only with my main sim card from simqadrat - product of sipgate.de, MVNO based on eplus network. This happens mainly in areas with poor network coverage. Such area in my case - workplace. At home i had never such behavior.
BTW, i contacted cell provider already, and got sim card replacement. same issue. BUT: after i've put O2 sim card into the phone, issue disappeared.
Furthermore: i have also jolla handset. Jolla had also strange behavior with sim card from simqadrat. Handset los network, and had immediate reset. My Galaxy Note N7000 work perfectly with than sim card, and have no issues.
@gurila: you have congstar, it's MVNO too, based on T-Mobile network.
I'm not GSM expert, but i assume that MVNO is root cause of our both cases. Just try to use any sim-card from e.g O2 or T-Mobile directly.
I'm really disappointed. Photon q was big hope to get long awaited qwerty slider.
Regards!
gurila said:
@kabaldan and @niko99 thanks for the help.
@comstyle is the guy i bought the xt897 from, and he opened it for me yesterday and we took a look inside... the grounding was already there. so it seems not to be the problem... he did put in new wires and clearned them up,... unfortunatly it has since it has gone from bad to worse
so FYI, the grounding seems not to be the problem with this bug.
I have ordered a new sim from the provider, let's see if that helps.
I DOES seem that the problem occurs when the battery is lower (no problems above 80%, somewhat at 60%, constant uder 40%)
nico, i will try the WCDMA trick... thanks... update once I have it...
Click to expand...
Click to collapse

stasila said:
Hi, guys!
My photon is affected by same issue. Sim mode have done together with colleague of mine.
Ground is connected properly.
My observation is: this issue occurs only with my main sim card from simqadrat - product of sipgate.de, MVNO based on eplus network. This happens mainly in areas with poor network coverage. Such area in my case - workplace. At home i had never such behavior.
BTW, i contacted cell provider already, and got sim card replacement. same issue. BUT: after i've put O2 sim card into the phone, issue disappeared.
Furthermore: i have also jolla handset. Jolla had also strange behavior with sim card from simqadrat. Handset los network, and had immediate reset. My Galaxy Note N7000 work perfectly with than sim card, and have no issues.
@gurila: you have congstar, it's MVNO too, based on T-Mobile network.
I'm not GSM expert, but i assume that MVNO is root cause of our both cases. Just try to use any sim-card from e.g O2 or T-Mobile directly.
I'm really disappointed. Photon q was big hope to get long awaited qwerty slider.
Regards!
Click to expand...
Click to collapse
No, it's not MVNO, it's the SIM card.
I had the same conditions - poor Vodafone network coverage at my workplace.
T-Mobile SIM - zero issues, anywhere.
Then I switched from T-Mobile to Vodafone and troubles started.
At workplace, every 2nd or 3rd call has been interrupted by the SIM error.
Then I've got a replacement SIM from Vodafone and things got even worse, now I couldn't finish even a single call at my workplace.
Then I've got another replacement SIM from Vodafone and I have zero issues since then.
As you can see, no MVNO has been involved in my case. But I needed to get 3 SIM cards from Vodafone till it was right.
EDIT: see also http://forum.xda-developers.com/showthread.php?p=54047152

kabaldan said:
No, it's not MVNO, it's the SIM card.
I had the same conditions - poor Vodafone network coverage at my workplace.
T-Mobile SIM - zero issues, anywhere.
Then I switched from T-Mobile to Vodafone and troubles started.
At workplace, every 2nd or 3rd call has been interrupted by the SIM error.
Then I've got a replacement SIM from Vodafone and things got even worse, now I couldn't finish even a single call at my workplace.
Then I've got another replacement SIM from Vodafone and I have zero issues since then.
As you can see, no MVNO has been involved in my case. But I needed to get 3 SIM cards from Vodafone till it was right.
EDIT: see also http://forum.xda-developers.com/showthread.php?p=54047152
Click to expand...
Click to collapse
been away for a while and the beauty has languished in the drawer
before that I tried it with two other providers (1 in israel and another in egypt) with no sucess.
will continue to try...
failing that i'll have to sell it on ebay as broken

gurila said:
failing that i'll have to sell it on ebay as broken
Click to expand...
Click to collapse
@CornholioGSM would probably be able to fix it for you... if he did the mod, perhaps for shipping only. Of course if he did not do the mod, then I'm sure he would ask for some fee... Send him a PM.

Sometimes LTE stops working

I am on T-Mobile my nexus 5 is stock unrooted and when I'm on YouTube it will switch to h and I will have to leave it off for a few minutes for it to have LTE again I don't know whether its the phone or T-Mobile
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I don't get this problem on T-Mobile. What firmware are you on?
Sent from Tapatalk on Nexus 5

I am on ktu84p with m8974 baseband it has been doing this since Saturday on and off I use a lot of data because my home internet goes out a lot but I have unlimited data with unlimited data it is almost like T-Mobile is throttling me but why I have unlimited

Could it be a problem with the radio I called T-Mobile they said that there is no problems on there end should I RMA it if that would make a difference or would the new nexus 5 do the same thing

It seems to be suffering other problems as well like awful battery life and it gets hot very easily all of this after updating to 4.4.4 don't want to root it again but either root it or get a new one

very little of this screen on time it never used to drain this fast

If you're on stock and you haven't made any changes, the problem is either on T-Mobiles end or the hardware. If you called T-Mobile and they said there's no service outage I would look into an RMA.
Sent from Tapatalk on Nexus 5

I have ran into a few other problems as well the battery issue and it getting hot as far as I know it's a big problem I think I will root the next one when it gets here tomorrow

That's the N5 for you. I just got another one after a 6 month hiatus and I forgot how crappy the radios are in it. With my most recent phones, iPhone 5s and Moto X, I would ALWAYS be on LTE in my area. There is a tower nearby so signal strength is not an issue. Even outside my area, neither of those phones ever dropped LTE. The N5 on the other hand drops down to HSPA+ all the damn time. I have to toggle airplane mode to get LTE back up and it always comes back with near full bars so again, not a signal issue. I've had 3 N5's in the last 2 weeks and all of them did the exact same thing, and my original N5 that I got when it first came out also did it so it is clear to me that it is just a fact of life with the N5. This is a prime reason why I am sticking to Motorola from here on out.

Is it just the Youtube app or is it just when you start using a lot of data?

When using a lot of data I just got the replacement nexus 5 and it doesn't seem to be doing but I am on purity ROM I will have to see if it does it with this one

Your LTE signal is terrible in that screenshot . It's simply switching when apps can't get a good connection to LTE. If it's that bad, I'd save the trouble and toggle LTE off.
---------- Post added at 07:53 PM ---------- Previous post was at 07:53 PM ----------
And I bet if you have a strong signal, it doesn't happen?

Your suggestion works I get almost full signal h+

I have been noticing the same thing on my Nexus 5 on T-Mobile. If I am receiving only 1 bar of LTE I will sometimes loose LTE and it will never come back until I am in an area with strong LTE for a while.
Sent from my Nexus 5

N5 Terrible Reception

Hey everyone,,
I'm in the UK, on 3, and my N5 gets terrible reception pretty much everywhere, mainly indoors. Was wondering if anyone in here has the same problem, trying to figure out if it's the network or the phone itself, though before I had the N4 and didn't have a problem.
Swiching from 4G to 3G as preferred network doesn't make a difference.
Cheers.

Indoors will be limited by the laws of physics, same for any network
Though there are simple logic tests to narrow down the issue further:
- Anyone else on the same network around you with same reception issues?
- Tried your SIM in another unlocked phone?
- And a different SIM in the N5?

Hey Eddie, cheers for the reply.
- No one else here on 3
- Works fine on my N4, no reception problems
- Not yet, plan to
Cheers.

I don't if its placebo or something, but I think flashing KRT16M radio helped my reception.

@DaaT
Don't go flashing radios just yet, won't necessarily make any difference.
When doing the comparison testing, best to use a signal measurement app, or view the strength in dBm in the 'about phone' section. Signal 'bars' aren't really a standard measurement.
If the N5 consistently gets lower signal strength readings with multiple SIMs compared to other devices, then more than likely device issue.
Good idea to still check with other Three users when you get the chance.

Hi Eddiehk6,
Not planning on flashing anything, phone's unlocked but not rooted and fully stock (used to flash ROMs left & right until a couple of years back, but since I've been happy staying stock).
I haven't the a chance to try another SIM in the N5 yet, but wrt to signal, I checked last night at home and was getting -100/101 dBm and 39/40 asu. Right now, here at work, I get 0, zero, nada.

Signal indoors isn't particularly strong for Three here in the UK due to the frequency bands they use for their 3G network. Along with this, they have no 2G network to fall back on and their low-frequency VoLTE-capable network is limited to a few devices in certain areas.
Sent from my Nexus 5 using Tapatalk

dkconor said:
Signal indoors isn't particularly strong for Three here in the UK due to the frequency bands they use for their 3G network. Along with this, they have no 2G network to fall back on and their low-frequency VoLTE-capable network is limited to a few devices in certain areas.
Click to expand...
Click to collapse
Fair enough, strange though that I never had issues with my N4, both at work and at home. Anywhere really. Checked last night at home and again, signal went down to 0. It's weird...
Keep forgetting to bring the SIM ejection bit to work so I can try someone else's SIM card Guess I could also open it and check the antenna connectors at the bottom.

Removing the Black Cable that runs along the right side of the Nexus 5 that controls the data connectivity and plugging it back in and making sure it was really tight helped me solve the issue. I made sure to tape it too.
As for GSM connectivity issues I had, i sought to using this trick I found online: http://forum.xda-developers.com/google-nexus-5/general/hardware-mod-increse-signal-strength-t2842599
You also might want to unlock some extra bands incase: http://forum.xda-developers.com/google-nexus-5/general/radio-enable-lte-band-3-nexus-5-d820-t2928561
Edit:
The right side shows the cables you want to remove and reinstall and tape it down to the connectors. Make sure they are held tightly:
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Cheers for the info Furrydaus.