Weak signal on Vibrant - Vibrant Q&A, Help & Troubleshooting

So I got a Vibrant not too long ago used off someone here. It's been fine and all but one thing I noticed is that signal is not as strong as my other phones have been. I only get 3 bars (about -95 dBm) in my house and it gets lower not to long after holding it. At first I thought this was just the network I'm on (WIND) but my friend also has a Vibrant and he gets somewhere up in the 70's in terms of dBm and 4 bars when putting them right next to each other. Is this a hardware defect? I tried pulling the little copper tabs up to see if it would have any effect like the GPS fix does, but it seemed to do nothing. I've tried some modems too, nothing.
...Help?

Check this thread out. http://forum.xda-developers.com/showthread.php?t=959088

Christ1119 said:
So I got a Vibrant not too long ago used off someone here. It's been fine and all but one thing I noticed is that signal is not as strong as my other phones have been. I only get 3 bars (about -95 dBm) in my house and it gets lower not to long after holding it. At first I thought this was just the network I'm on (WIND) but my friend also has a Vibrant and he gets somewhere up in the 70's in terms of dBm and 4 bars when putting them right next to each other. Is this a hardware defect? I tried pulling the little copper tabs up to see if it would have any effect like the GPS fix does, but it seemed to do nothing. I've tried some modems too, nothing.
...Help?
Click to expand...
Click to collapse
You could be right about a hardware issue check this out Let me know if this helps you
http://forum.xda-developers.com/showthread.php?t=948156

I've tried the KA5 (seems to be best modem), and nothing. I've tried most modems and it doesn't seem to have any effect on giving me better signal strength, I remember fiddling with that tab (that's apparently for Wi-Fi) but didn't bother really pulling it up. Guess I'll give that a shot and see what happens with the KA5 modem
No luck with that. Still the same

Related

Sudden signal drop. Phone issue?

Hey Gang.
Last night I noticed that my phone didn't have full signal (4 bars) in my house. This is the first time since I've had the phone.
After playing with it for a while I noticed that if change from 3G to Edge then my signal strength goes from 1-2 bars (-110db) back up to 4 bars (-73 db).
I'm not sure if that's normal behavior. I've also noticed the the phone gets hotter than normal when transferring data via 3G and the battery drains like crazy (lost 50% charge over 2 hours of testing this morning).
I called my provider (Rogers - I'm just north of Toronto) this morning and they say that the one tower in my area seems to be working fine.
I did a factory reset using SEUS but still have the same problem.
Any ideas? I thought I'd try to reseat the antenna but I can't find the damn thing.
AdamUpNorth said:
Hey Gang.
Last night I noticed that my phone didn't have full signal (4 bars) in my house. This is the first time since I've had the phone.
After playing with it for a while I noticed that if change from 3G to Edge then my signal strength goes from 1-2 bars (-110db) back up to 4 bars (-73 db).
I'm not sure if that's normal behavior. I've also noticed the the phone gets hotter than normal when transferring data via 3G and the battery drains like crazy (lost 50% charge over 2 hours of testing this morning).
I called my provider (Rogers - I'm just north of Toronto) this morning and they say that the one tower in my area seems to be working fine.
I did a factory reset using SEUS but still have the same problem.
Any ideas? I thought I'd try to reseat the antenna but I can't find the damn thing.
Click to expand...
Click to collapse
I am north of toronto Newmarket 4 bars -81db and 4 bars -87db ( 3g )
pm me and I can give ya a few tips hopefully to sort it out.
Rockjock007 said:
pm me and I can give ya a few tips hopefully to sort it out.
Click to expand...
Click to collapse
Post any tips here please as it may help others.
XperiaX10iUser said:
Post any tips here please as it may help others.
Click to expand...
Click to collapse
Of course after all we are all here to help yeah?
So after driving around and visiting the local Rogers shop, it appears to be a tower issue. Looks like the phone was working fine in the store and in town. I called tech support and they're sending someone out to the tower near my house. (<1 km or 1.6mi from my house). There was a power outage yesterday so that my have caused a problem. I'll post an update in a few days after Rogers checks the tower out. I'm hoping it's that. I'm thinking the extra heat may have been from the phone cracking up the antenna to try to connect. I remember someone say that in low signal areas their batteries drain fast.

signal issues/death grip???

no I love my sgs2 and so does every that holds it, ive a major issue that i thought was caused by switching from orange uk to o2 uk, but as it happens i have full signal when the phone is rested down... however when i pick it up it drops signal... more often than not the signal completely drops out as does the call and sometimes it just goes down to 1 bar... does anyone else have this problem? ive tried my o2 sim and my orange sim its the same for both... is it possible i have a defective handset ? weak radio ???
heres my quick vid to show you what i mean, apologies for the video quality... filmed on my bb9700
http://www.youtube.com/watch?v=9VthdB4V3D8&feature=channel_video_title
well the GSM and 3G antenna looks to be located in the bottom, back part of the device. so this seems like the exact place your hand would be covering when holding the phone, so i can easily see some significant signal attentuation happening with this phone.
i dont know where the antenna was located on the original galaxy s. but all phones i own always have attentuation. not much you can do about it i'd guess.
Applies to all wireless devices - signal transmits worse through your hand than through empty air. Rules of the universe.
However, I can't seem to replicate what you're seeing. In order for bars to drop, I have to block the entire bottom of my device using both hands. Holding it in one hand doesn't seem to be causing a drop for me.
But again : air > hand for signal transmission.
RogerPodacter said:
well the GSM and 3G antenna looks to be located in the bottom, back part of the device. so this seems like the exact place your hand would be covering when holding the phone, so i can easily see some significant signal attentuation happening with this phone.
i dont know where the antenna was located on the original galaxy s. but all phones i own always have attentuation. not much you can do about it i'd guess.
Click to expand...
Click to collapse
That's right, quick start guide shows the location of the antenna. If you look at the back of the device, the antenna is in the lower left hand corner, opposite the speaker.
When holding the device in your right hand, it should rest in your palm.
Actually holding the device in my right hand doesn't seem to be affecting my signal though, for some reason. I might just be in an area with good signal though (3 bars of h+, stays at 3 bars when holding it in 1 hand, drops to 1 bar when covering the device completely with 2 hands, and then changes to edge with full bars).
I just tested with my S2 and I had no problems whatsoever.
See my youtube channel (../user/Poppefieke) Can't post links yet.
I have some other S2 video's there too
i think sampullen who has been posting quite a few vids on youtube is going to cover this now too, see i hold my sgs2 in my left had for holding when im surfing etc but also when im on calls...
its good to hear some of you cannot replicate this, maybe mines faulty might try to exchange for a new 1 just to be on the safe side
OMG!
can more people confirm if this is real?
is it as bad as the antenna-gate issue from apple or no where as bad
Hey (samjpullen) here
I have been doing the tests like Sticky and have been getting some rather conflicting results to say the least.
I am not in the best area for Orange so i get a weak signal most of the time, when i do the test infront of my iMac and extra screen with the TV, Sky (you know the drill) on it seems to drop down from H with 1 bar, then down to 3G then down to G and then it can jump onto the Edge network (rathe strange)
But when i do this same test in other rooms e.g bathroom, other bedroom, even downstairs with the tv etc on it is fine!
So my guess is that it might be my rooms location and maybe all the electrical equipment within a small space.
AllGamer said:
can more people confirm if this is real?
is it as bad as the antenna-gate issue from apple or no where as bad
Click to expand...
Click to collapse
im hoping no where near as bad and im hoping that i was the only affected, one chap has placed a video reply to mine showing he doesnt have the issue which is good news, lets hope more can confirm im rather a 1 off and that if i replace this unit all will be well...... fingers crossed
cheers sam,
btw ppl follow sam on twitter, guys good!!!

WiFi reception seems weak

Was utilizing my home wifi signal to connect to a web site, but it would time out and not connect. Check and saw the wifi signal strength indicator with only the bottom dot illuminated. My laptop, right beside me, had all five bars illuminated. Switched the phone from wifi to data and it connected right away.
I ha e the same issue! But I am rooted. Is there any kind of a fix out there?
Sent from my SAMSUNG-SGH-I777 using xda premium
Same. It's weaker than the Infuse i have
The international SGS2 doesn't like D-Link routers. I don't know if the AT&T version's the same. There's less range with a D-Link for some reason and it wreaks havoc on the battery. It likes Netgear routers.
Wifi is weaker than my captivate was, but the GPS is really good. I got a solid lock in some pretty dense woods while on a hike. Whereas my captivate got awesome wifi but crap gps. I wonder if its a trade off with the antennas.
How's the signal on a 2Wire router from ATT for DSL service?
Sent from my HTC Inspire 4G using XDA app
Same issue here. My captivate had a much better reception. I checked at home and at school. Both places it had only one bar in the signal while being only 35 feet away from the router with only one wall in the way. It looses signal when further away while my laptop still has it. I'm connected on 802.11n in both places so maybe its something with that?
I also see lower wifi signals compared to iPhone 3gs.the difference isn't huge but definitely noticeable.
I noticed that too. It is weaker than my ex 3GS iPhone as well.
Weaker? Indicator?
Has there been any test on SIGNAL STRENGTH versus the number of bars? I don't mean to take a page out of ANTENNA GATE, but just having a fewer number on the display, doesn't actually indicate poorer reception.
For the guy with the 3gs, can you measure with something like speedtest.net? Since transfer speed descrease respective to signal strength, this seems like a good test.
I just bought a SGS II and would really like to know if the indicator is accurate and comparable to other devices and it does have a weaker antenna.
Thanks.
I didn't wanna make a new thread but same here. Wifi is pretty weak on this phone . Fairly disappointed at that.
To beat a dead horse, I am always at 1 or 2 wireless bars versus my IP4 being at full wifi bars. Not sure how its effecting the actual browsing though.
I will say that my GS2 consistently shows less bars than my iPad and previous iPhone 4(1 or 2 compared to full).... BUT I have yet to have a single issue browsing or accessing anything and speed is still excellent. So it could just be a display issue.
My only problem with that is that if I do really have a bad signal and have a crappy connection I'll never really know - because I'll aways asume the connection is good even though it's reporting low strength.
I've sometimes had my GS2 show extremely weak wifi signal even when sitting right next to my router - but the wifi still works just fine, inconsistently with the displayed signal strength.
So if it's showing weak but working fine, don't worry.
Entropy512 said:
I've sometimes had my GS2 show extremely weak wifi signal even when sitting right next to my router - but the wifi still works just fine, inconsistently with the displayed signal strength.
So if it's showing weak but working fine, don't worry.
Click to expand...
Click to collapse
I can agree with this. My router is located very close to my phone and sometimes my phone shows only 1 bar of signal but the overall performance is still snappy and quick. no worries
I'm coming from a iPhone 3G. While the SGSII displays less bars it also seems to pick up wireless signals that my iPhone never detected (free wireless downtown).
Also at home in some rooms it shows less than full while my iPhone always showed full but I never noticed it being slow. I think it just displays differently.
From AnandTech
Referring to Cellular connectivity:
"In addition, Samsung makes the mistake of going with a signal bar visualization with very compressed dynamic range. Since the whole iPhone 4 debacle, I’ve seen something of a trend towards a strict linear scale (which makes more sense), but SGS2 definitely doesn’t go that route. It’s not a huge deal however, just something to be aware of. I’m willing to overlook that issue considering that getting the real story on connectivity is no harder than dialing *#0011# and looking at the real number."
Referring to Wifi:
"As with every other radio, we have to do the receive sensitivity dance and make sure nothing is broken. I tested the SGS2 alongside an SGS 4G at my house with both an Airport Extreme (5th Gen) and WRT54G-TM boosted to 184 mW. SGS2 WiFi reception on 2.4 GHz is darn near identical to the previous generation.
There’s something deceptive about this however, and it’s that although Samsung has chosen to go the usual compressed-dynamic-range route with cellular bars, the WLAN bars seem to be more linearized. Thus where I’m used to seeing every other smartphone show max (until you’re right about to fall off), the SGS2 actually doesn’t lie to me and shows fewer bars. Until I ran around and looked at RSSI in dBm, I suspected SGS2 had WLAN sensitivity issues where there don’t appear to be any. One small thing I did notice is that SGS2 (and BCM4330) seems to only connect at long guard interval (eg 65 Mbps maximum for single stream, 20 MHz channels), where SGS1 and BCM4329 connected at 72 Mbps short guard interval."

Spotty, Erratic WiFi Signal Problem - Anyone Else?

Had my One X+ for about 6 days now. Noticed that in parts of my home, had network connection issues where I never had them with any other devices. Dowloaded Wi-Fi Analyzer and SpeedTest. Downloaded SpeedTest on my old iPhone 4. And I confirmed that my phone has many more issues connecting in parts of the home than the iPhone. It's VERY erratic. You can put it on the counter 6 inches below where you were holding it with your hand, and wala, better signal. Pick it up and signal goes to crap. It's mainly with the 5.6ghz signal but 2.4 is effected to. Enabling / Disabling the Wi-Fi Performance Enhancement setting in Setting > Wi-Fi > Settings makes no difference that I can see and I compared it on and off several times using Wi-Fi Analyzer. This may be a dealbreaker for me on this phone. Maybe have to exchange it for an S3.
At times it loses connection briefly, then when it re-connects, signal is much better but it's not consistent. When running Speedtest on iPhone gauge usually goes up fairly smoothly and stays there (not always). On One X+ gauge gets "stuck" a lot more often and/or goes down.
I run an ASUS RT-56U router with latest firmware. Works excellent. It has my same network SSID bound to both 2.4 and 5.6Ghz channels. It's almost as if the One X+ has trouble dealing with a drop in the 5.6 and seamlessly moving everything to only 2.4? I actually tried to lock the phone to 2.4 or 5.6 in settings, frequency. It went crazy, both settings, it can't connecting and disconnecting.
Wondering if it is a hardware fault that was found in original One X that may have not been fixed?
http://www.google.com/search?q=htc+...c+one+x++wifi+signal&sourceid=chrome&ie=UTF-8
jazee said:
Had my One X+ for about 6 days now. Noticed that in parts of my home, had network connection issues where I never had them with any other devices. Dowloaded Wi-Fi Analyzer and SpeedTest. Downloaded SpeedTest on my old iPhone 4. And I confirmed that my phone has many more issues connecting in parts of the home than the iPhone. It's VERY erratic. You can put it on the counter 6 inches below where you were holding it with your hand, and wala, better signal. Pick it up and signal goes to crap. It's mainly with the 5.6ghz signal but 2.4 is effected to. Enabling / Disabling the Wi-Fi Performance Enhancement setting in Setting > Wi-Fi > Settings makes no difference that I can see and I compared it on and off several times using Wi-Fi Analyzer. This may be a dealbreaker for me on this phone. Maybe have to exchange it for an S3.
At times it loses connection briefly, then when it re-connects, signal is much better but it's not consistent. When running Speedtest on iPhone gauge usually goes up fairly smoothly and stays there (not always). On One X+ gauge gets "stuck" a lot more often and/or goes down.
I run an ASUS RT-56U router with latest firmware. Works excellent. It has my same network SSID bound to both 2.4 and 5.6Ghz channels. It's almost as if the One X+ has trouble dealing with a drop in the 5.6 and seamlessly moving everything to only 2.4? I actually tried to lock the phone to 2.4 or 5.6 in settings, frequency. It went crazy, both settings, it can't connecting and disconnecting.
Wondering if it is a hardware fault that was found in original One X that may have not been fixed?
http://www.google.com/search?q=htc+...c+one+x++wifi+signal&sourceid=chrome&ie=UTF-8
Click to expand...
Click to collapse
If u got a problem with WiFi in certain areas of Your HOME i dont think its hardware problem. If u have a hardware problem Your WiFi couldnt recive more than "dot" signal even near router. Its because hardware issue was about antennas of WiFi (they were f****) To test hardware issue on HTC ONE X after squeze certain area of phone (antennas connected) signal growed up after release signal went down...
Looks like my hunch may be correct in that it has something to do with the phone switching between the 2.4Ghz and 5.6Ghz bands. 2.4Ghz has much better range. But in the wi-fi settings it is set to Auto frequency. What appears to be happening is that the phone prefers 5.6 but when it loses it, it switched to 2.4. I have a "dual band" N router so the same SSID is bound to both frequencies. I think this improves bandwidth for devices that communicate on both at same time (or is that not possible?) But I can't seem to get it to work if I change the frequency setting to anything but Auto. It won't authenticate when not on Auto! Bug?
Related One X Thread here:
http://forum.xda-developers.com/showthread.php?t=1730383
I've been struggling with WiFi issues on my phone as well. Whether the phone is set to 2.4GHz, 5GHz or Auto, the connectivity is spotty at best.
With other devices in the house including my old Inspire 4g, a Kindle Fire and an iPhone I can get full reception but only 1 bar on the One X+ in spots. I have noticed that holding the phone upright in poor reception areas brings the connectivity up a bar or two usually but that's not optimal for usage... Same thing happened at the girlfriend's family's house yesterday and my connectivity was also progressively more spotty at work in the past week since getting the phone.
The screwy thing is it seems completely intermittent. It'll be fine for a few hours then suddenly the connectivity goes to crap. I'm pondering exchanging the phone for another just to see if the issues persist.
I spent much of Thanksgiving (sadly) testing the WiFi on this phone using WiFi Analyzer and speedtest at locations all over my house. I compared results with an iPhone 3GS Iphone 4 and Samsung Series 6 notebook. The One X (+) was terrible. At times it performed well but in the exact same location, the next time it would perform dismally. Very unpredictable and erratic and I found out why!
** THERE IS A 20+ dbm DROP IN SIGNAL WHEN HOLDING THE PHONE IN THE PALM OF YOUR HAND! **
Now this may be common with a lot of phones, I don't know. But, the signal strength on this phone is already not what I would describe as "Best in Class" so this drop in many areas where the signal is moderately low to very low, holding the phone in the palm usually makes a difference as to if you have a usable connection or not!
I have a highly respected ASUS RT-56U router and made sure I had the latest firmware installed, but as I said, even the iPhone 3GS had more consistent, better, even results compared to this phone in many low signal areas when I held the One X in my hand. So it's not the router, it's the device.
Next step is to try to determine if it is this one phone, the One X+ AT&T model, and the One X AT&T model, or all One X models, including International? I will head to the store to see if they will let me run the test on another phone. I'm praying it is this particular phone but my gut tells me it is probably an issue in the design of the phone. I really like this phone but may have to go for the Samsung Galaxy SIII instead as this wifi issue is BAD, and unacceptable. Would get a Nexus 4 but I need more than 16GB of memory!!!!!
I shot a video about this showing the Wifi Analyzer running:
http://www.youtube.com/watch?v=8IUkbnj5pY0
Well, this morning I did similar testing and am seeing a 20-25 dBm drop whenever I pick the phone up...
Have you had a chance to check with your local AT&T store about testing other One X+ phones?
Sent from my HTC One X+ using xda app-developers app
tier~ said:
Well, this morning I did similar testing and am seeing a 20-25 dBm drop whenever I pick the phone up...
Have you had a chance to check with your local AT&T store about testing other One X+ phones?
Sent from my HTC One X+ using xda app-developers app
Click to expand...
Click to collapse
It would seem pointless now, since you are having the same issue, it seems to be an issue with the any One X+ (and I would bet also any One X). Maybe there's always a drop on any phone (iPhone there's no analyzer to show you signal). But this large 20-25 dBm drop make a difference between fast/normal browsing and slow/no browsing on the Net when sitting in many areas of my house. I would expect using it at other locations (on trips, etc.) it will drive me nuts. I do A LOT of browsing, use the phone like a mini tablet. So fast WiFi connectivity is paramount! I get better 4G LTE range/speeds than wifi in those areas of my house, but don't have unlimited data!
Sounds pretty simple, either u need a better router or u have a bunk phone. I have WiFi all over my house, my parents house, my work, all with zero issues and all obviously different routers. I'd maybe try another device. You have 14 days in the state's no questions asked for a new phone exchange.
It's not router. I went to AT&T store. Rep had S3. He loaded Wifi analyzer. We monitored same wifi network next shop down. HTC, signal dropped almost 20 dBM when you put it in your palm. S3, not change or 5 dBm at most. Loaded WiFi analyzer on X+ on display, but palm around it best I could around the display mount, big signal drop.
I have a large home. The thing is, no other devices have issues. What I suspect is with my home, certain areas push the HTC One X+ to its limit as far as wifi range. Most users don't notice "issues" as they don't lose a connection. And I didn't lose connection either, or rarely, just got really slow. You have to walk all around and look at WiFi Analyzer and compare holding fold to setting phone on table. Then also compare Speedtest.net app results. With S3 and notebook computer I'm getting 20mbit speeds in most areas, difficult areas, still has a consistent 6-8mbit speed. HTC One X+ those problem areas, 1mbit speeds if lucky or loss of connection.
Since nothing is changing in the test environment besides the device, the HTC clearly has poor wifi reception *RELATIVE* to other devices when held in palm of your hand. I found though you can get around this if you hold lower half of phone no issues and if you turn phone on its side, not as bad of a drop either.
I made it up to the AT&T store yesterday afternoon just to compare to another HOX+. Same thing was happening with the floor model of the phone. The manager went ahead and replaced my phone with a new one regardless just to cover our bases but like you said jazee, it does appear to be the radio location in the phone causing the issue. Just have to be conscientious of how I hold the phone.
To compensate I cranked up the TX power on my router a little bit which has helped. I run dd-wrt on it though so I have that option. Not sure what your firmware gives you access to in your Asus router. I have heard Padavan's custom firmware is a good option if you want to do more than what the stock firmware gives you access to.
jazee said:
I spent much of Thanksgiving (sadly) testing the WiFi on this phone using WiFi Analyzer and speedtest at locations all over my house. I compared results with an iPhone 3GS Iphone 4 and Samsung Series 6 notebook. The One X (+) was terrible. At times it performed well but in the exact same location, the next time it would perform dismally. Very unpredictable and erratic and I found out why!
** THERE IS A 20+ dbm DROP IN SIGNAL WHEN HOLDING THE PHONE IN THE PALM OF YOUR HAND! **
Click to expand...
Click to collapse
I get a similar drop, but more along the lines of 10 dbm.
Try keepalive from playstore
Sent from my HTC One X+ using Tapatalk 2
Same WiFi issue
I'm having the same issue as jazee (OP). I browse on my WiFi and then when I click on a link, I just hold the phone in my fingertips (not palm) and the signal jumps up and page loads.
Assuming olorolo's on to something here and there is an app to fix it... I'm heading to the play store to see what I can find like "Keepalive" as recommended. This is my first foray into Android though, so I can't help but wonder if you guys are already ahead of me. Any luck yet fellas?
Yes if you hold phone below volume rocker, or sideways, or even in palm with right instead of left hand, you can mostly mitigate the signal drop.
I'm happier on S3 except having to go back to ICS 4.0.4 and wait for JB 4.1. No wifi issues, much better battery usage, and no could pegged at times by Beats trying to scan my 2800 mp3 files in the background for some reason. Could tell as HTC gets HOT and then battery plummets. Brand new phone. Maybe some issues to work out?
Oh and I love having 2GB Ram for multitasking better. Would have hot S3 initially if I realized US ver had 2GB ram like new Nexus 4.
Sent from my SAMSUNG-SGH-I747 using xda app-developers app
Looks like a case helps
jazee said:
Yes if you hold phone below volume rocker, or sideways, or even in palm with right instead of left hand, you can mostly mitigate the signal drop.
I'm happier on S3 except having to go back to ICS 4.0.4 and wait for JB 4.1. No wifi issues, much better battery usage, and no could pegged at times by Beats trying to scan my 2800 mp3 files in the background for some reason. Could tell as HTC gets HOT and then battery plummets. Brand new phone. Maybe some issues to work out?
Oh and I love having 2GB Ram for multitasking better. Would have hot S3 initially if I realized US ver had 2GB ram like new Nexus 4.
Sent from my SAMSUNG-SGH-I747 using xda app-developers app
Click to expand...
Click to collapse
I just so happened to have got my case in the mail today -- Ballistic SG -- and with it the WiFi drop is much less (more like 10dBm). I kept scanning with WiFi Analytics and no matter how I held it in my hands, I could never reproduce the -80dBm I was getting, no case, in the palm of my hand in the exact same spot.
For what it's worth anyway, it seems like the half centimeter of case is helping. I never would have noticed if I bought the case on day 1.

Poor signal

My i9205 have generally poor signal compared to my note1. It doesn't seem to make any difference to turn of LTD. I have not experienced any call dropping, only referring to the displayed signal. My note shows full signal while i9205 shows minimum signal. And in battery usage the "Cell Standby" is quite high and normally with 10-20% "Time without signal" even if I have not noticed any time without signal.
Anyone have similar issue ?
I have the Mega GT-I9200 and experience spotty signal as I drive around. I am on T-mobile in New York. Within a 15 mile radius in New York City my signal will fluctuate between HSPA+, Edge, G (1st generstion GPRS), and sometimes complete loss of both data and cellphone signal. I think the issue is I might need a modem to be ported from a t-mobile device to give me a consistent signal. Not sure if anyone could do that or if there's even a t-mobile device whose modem would be compatible at this point.
Sent from my GT-I9200 using xda app-developers app
Yep! I'm definitely getting this too. The phone very rarely shows the full 4 bars of reception, and in low signal areas (1 bar or less) the phone starts flipping between GSM/WCDMA (UMTS) constantly, giving very poor reception. Also, signal strength in general isn't as good as my nexus 4 was. I sometimes am unable to reliably maintain a signal at all in areas that I know my N4 could reliably hold 1 bar of strength, with the phone disconnecting from the network completely and then reconnecting all the time.
As I'm in the UK and without LTE anyway, I've switched the phone to WCDMA mode only, which has helped though the phone now just flips between HSPA and HSPA+ when in poor signal. Its certainly much more usable this way at least.
On the upside, yesterday night with 3 bars reception I was consistently able to get over 15Mbps download, with my best result of nearly 19Mbps! So it doesn't look to be a hardware issue.
I'm speculating wildly here but to me this looks like a SW issue in one of two areas: signal strength isn't being reported correctly (too low), causing the phone to take action to try and obtain a better signal (by flipping to a lower bandwidth protocol or disconnecting and trying to detect a better macro, for instance) when it isn't really necessary OR maybe the phone is just too aggressive in switching from HSPA+ down to GSM to save battery.
Is there some way to take control of the mechanism, and try to force the phone to stay in hspa+, or to spoof a higher signal strength?
EDIT: This phone is packaged with very thin plastic wrapping over the metal band that runs around the circumference of the device. I accidentally left a lot of this wrapping on for the first few days. It may be complete crap, but I think my signal might have improved since I removed it all! I certainly seem to be able to maintain a connection in places that I wasn't able to last week, and maintain a constant (4-5Mbps) HSPA+ link in areas that I couldn't before...
Time will tell...
I have the same encounter, I have two sim cards belong to the same number one for phone and one for tablet. The one in Mega 6.3 give me three bar signal but the one in Galaxy tab plus 7" give me four bar signal :crying:
I am also having reception issues with my mega 6.3 I get worst reception than any of my other phones sitting in the exact same spot. I am on ATT in the US. I removed all the plastic around the phone. I am wondering if it is my APN settings. Hopefully someone can shed some light on this or there is something eles going on.
The Mega has an issue with the radio. I bought two of these an i9200 and i9250. Both Mega's would lose signal completely. I don't have the greatest signal here at my home, but it has never been an issue with any other phone such as Note 1 and Note 2 and many others. If you are in a weak signal area more than not, you may wamt to hold off until the radio issue is resolved with software or whatever. They were unusable for me and I re-sold them.
Sent from my GT-N5100 using xda premium
I have an i9205 and it's fine with the signal. I'm in the UK though
The big problem about this is that the phone uses much more battery when signal is low and using 3G. I can get 6-7 hours screen on time on one charge while wifi is on. But when using 3G with low signal I get 3-4 hours.
I hope this is a radio firmware thing, and not a hardware thing, so that it could be improved with updates.
so any updates?
Same problem here with my new Mega 6.3! My phone have only 1 or 2 bars signals while my brother's Samsung Grand has full antenna easily. It's very annoying. What should we do?!
Same ****ty reception going on with mine. I returned it.
I changed it too. New one is working fine.
hi. ah really? changnig phone u noticed a consistent improvement in reception?
but... i can say that i and my girlfriend, using a DIFFERENT SELLER...... we have the same problem of cell standby
I found that all phone models are inconsistent in radio reception, not sure why...
Sometimes the updates can do a little better, but I believe the hardware is the most limiting factor.
Maybe Mega isn't for you where you live, just return it then get another phone
i have poor signal Too
Any news or solution ?

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