Hello.
I changed my motherboard recently to a MB I bought from AliExpress. MB is a WCDMA version. It works fine, but it does not register onto 3g networks. The same sim works in 3g in my other phone. When I search networks manually it shows awailable 3g networks. But when I select one it fails to register into a network. Please can someone help me with solving this issue.
Thank you
The model number says mi3w. Are there different varients of mi3w which doesn't support wcdma bands outside China?
My model says WCDMA. Are there different versions of WCDMA which do not work outside China?
Related
I bought my HTC Diamond on UK. I updated the ROM to the RUU_Diamond_HTC_HK_WWE_1.93.831.1 this was supposed to make my phone QuadBand. It does work in USA (Boston) where I live. But I have never seen my phone doing 3G and speed test top was around the 1xx kbps.
Any Ideas?
PS. I am on the ATT network
Are you sure you have 3G coverage in Boston? Do you have a USIM-card (which I was told to be required for UMTS stuff)?
3G speed
I did look at the ATT coverage map and it said that I do have coverage.
How do I know what type of SIM I have? The SIM does have the 3G logo on it.
Are you sure your phone has the bands?
Check the Band setting, Settings->Phone->Band,
in the dropdown box for "Select your GSM/UMTS band", my US 3G ATT phone shows the following options:
Auto
UMTS(850+1900)+GSM(850+1900)
(oddly enough, the settings have to be on Auto for the phone to work..)
When I bought my diamond, I was curious about my sim too, so I took it into the ATT store and asked if it was the "latest 3G sim" and he said yes. Mine is half white (top) & half Blue (bottom), with a orange 3G fireball in the topright corner.
If yours matches all that, then take it to the ATT store and see if you get 3G in the store
Also..if you have doubts, I've had multiple Sales reps in the store tell me I can get a new Sim for free at any time, just need to ask.
3G
I do have that SIM half blue half white with the 3G fireball logo.
On my select network I have
Auto
GSM
WCDMA
on the GSM/UMTS band I have
Auto
UMTS(900+2100)+GSM(900+1800)
UMTS(850+1900)+GSM(850+1900)
UMTS(800+2100)
UMTS(850+2100)+GSM(900+1800)
UMTS(850)+GSM(900+1800)
UMTS(1700)
rpassmore
What ROM do you have?
RUU_Diamond_HTC_Europe_1.93.401.2
RUU_Diamond_HTC_Europe_1.93.401.2
Does this ROM supports USA 3G????
Sorry for my English
You have the European version and have only HSDPA 2100 / 900 (3G) and probably ATT works in HSDPA 850 / 1900, if this is the problem, sorry 3G is impossible for you, because is a hard problem, not a soft problem, search in this web there are many post about this. The European is quad band in GSM but not in HSDPA (3G)
CArlos
How about if I use another ROM
If I use another ROM ? would I be able to do 3G?
No I think it's impossible since it's different hardware I believe.
I think the one you have from UK, it only contained HSPA 2100 and US /Canada is using HSPA 850/1900, that's why you don't have the 3G signal.
Quad band only for voice and EDGE.
cmilian said:
rpassmore
What ROM do you have?
Click to expand...
Click to collapse
I'm using the stock rom/radio for the Unlocked US 3G.
1.93.422.4 WWE
1.00.25.08
But I missed the fact that you're using a European Diamond. sorry.
is there any conection betwen 3G and front camera....
i think i have an Eropean model from UK Vodafon which has the front camera... but i am not sure about 3G !
????
A month ago I bought a Nexus One phone on eBay (so it came from USA). Now the thing is that I am stuck in EDGE, and can't use the 3G network of my operator (Movistar). I live in a zone where there is no 3G service so I didn't notice it at first, but when I go to another zone, one with 3G, I'm still in EDGE!
Is it because I use the Movistar network? Should I switch to another service provider (Nextel or Claro)? or do I have the wrong phone for my country?
Yup. I'm pretty sure that's the reason...Phone from US with US (att or tmobile) bands. Vodafone is the carrier overseas that carries the N1 I think...
try to dial *#*#4636#*#* in dialer
then go into "Phone Information" -> "Set preferred network type"
is that set to GSM only?
Find out what version of the phone you have. One has tmobile 3g the other att.
Find out what bands the 3g are on in your country etc.
My bet is you got the tmobile USA version. And your network uses same bands as att in the states. Chances are all the networks their are on the same band.
momomok said:
try to dial *#*#4636#*#* in dialer
then go into "Phone Information" -> "Set preferred network type"
is that set to GSM only?
Click to expand...
Click to collapse
Nope, it shows a lot of options, and it is set to 'WCDMA preferred'.
albundy2010 said:
Find out what version of the phone you have. One has tmobile 3g the other att.
Find out what bands the 3g are on in your country etc.
My bet is you got the tmobile USA version. And your network uses same bands as att in the states. Chances are all the networks their are on the same band.
Click to expand...
Click to collapse
So I am screwed :S I should ask the seller for the version of the phone (even though I think I can find it under the battery: PB99100).
How can I know the 3g bands in Peru? Is there nothing I can do?
PB99100 is the T-mo version...
Yeah you have the wrong version. You need the att version for 3g to work in peru. Sorry
[Q] Unbranded unlocked Milestone cannot connect to data service on AT&T or T-Mobile
I bought a M1 off Amazon about 5 months ago. I don't have a data plan in my home country as my SIM is company provided without data. I get by with wifi most of the time. Over Christmas while in Miami, I tried my nephew's T-Mobile SIM from his HTC and I tried an AT&T SIM with $5 data - and neither would connect to EDGE or 3G. The phone could still make calls though. Anyone have any idea why that would be? I have no clue as to what region the phone would belong to -so I do not know what GSM frequencies it operates on. Motorola's website specs says that the GSM version operates on 850/900/1800/1900 MHz - and supposedly AT&T 3G operates on 850 7 1900 MHz -so I can't figure it out. Could it be something software/firmware related?
It's a APN issue if you can make calls but cannot connect to mobile data. Check your provider's APN configuration. (Just google it.)
yeah. check your apn. for stock rom and some other mods apns cant be configured automaticly
i flashed my phone with the global rom and now when i lock the screen while using LTE Network i can't recieve phone calls
only text message arrives on locked screen
when the screen is not locked or when the phone plugged in charger every thing works fine
P.S. on 3g network i don't have this problem​
I bought new mi5 and faced similar problem and ordered a replacement.
But the same problem persists in the new handset.
So after going through a lot of search
I conculded:
The phone network does not support voice over LTE yet in some networks.
Currently it is supported in europe and japan and some networks of states.
So no need to panic xiaomi is getting a patch to update to fix this bug from their side.
Till time enjoy callin/ internet via 3g network
By pressing *#*#4636#*#*
Select network to wcdma by which u wont have any problem of incoming calls and no net issues!
If u dnt bother incoming calls ..u knw how to get 4g?
Well you're doing better than me my phones never displayed 4g in areas I used to have it with my lg g5 any ideas using the *#*#4636#*#* apparently lte is enabled I'm on Vodafone UK also allegedly supported
Vodaphone and o2 will not work on 4G with this phone as it only uses band 20/800Mhz which is not activated.
4G Network:
1800MHZ
1900MHZ
2100MHZ
2300MHZ
2600MHZ
There is a list of bands and UK networks here
http://www.eglobalcentral.co.uk/xiaomi-mi-5-32gb-dual-sim-4g-lte-sim-free-unlocked-black.html
Network Compatibility
Operators in UK
LTE Network Frequency
3 800, 1800
EE 1800, 2600
O2 800
UK Broadband 3500, 3600
Vodafone 800
Fixed in Xiaomi Mi 5 Global Developer ROM Version: 6.8.11 (MIUI8)
Verified on Airtel 4G in Hyderabad, India
i can also verify it does not work stable rom but i works just perfect Latest Chinese developer rom.eventually they fixed this issue on latest developer roms.
I am in a country where all Network Operator uses Band3 (1800Mhz) for LTE. And i have search everywhere and it is clearly mentioned that mi5 pro do support lte Band3 and yet i can seem to be able to connect at all!
I am using China Stable version 7.5.6 and yet just cant connect at all to the LTE Network even when i manually tries to search and register to 4G Network, it just goes to No service then Emergency Calls only. :crying:
Hope anyone can help me out with this as i find it very sad that i cant use 4G in my country.
I have already tried several times to change stuff on the *#*#4636#*#* menu but still it just does the same thing. i have sims of all 3 operators and yet none of them connects to the 4G networks.
Maybe add the APN and turn on data for the sim you're using?
Sent from my MI 5 using Tapatalk
LordTao said:
I am in a country where all Network Operator uses Band3 (1800Mhz) for LTE. And i have search everywhere and it is clearly mentioned that mi5 pro do support lte Band3 and yet i can seem to be able to connect at all!
I am using China Stable version 7.5.6 and yet just cant connect at all to the LTE Network even when i manually tries to search and register to 4G Network, it just goes to No service then Emergency Calls only. :crying:
Hope anyone can help me out with this as i find it very sad that i cant use 4G in my country.
I have already tried several times to change stuff on the *#*#4636#*#* menu but still it just does the same thing. i have sims of all 3 operators and yet none of them connects to the 4G networks.
Click to expand...
Click to collapse
It should certainly work as I'm with Three who operate on 800 and 1800 and 800 isn't supported but I still receive 4G signal. As mentioned try manually adding the APN for your network?
General
2G Network:
850MHZ 850MHZ
900MHZ 900MHZ
1800MHZ 1800MHZ
1900MHZ 1900MHZ
3G Network:
850MHZ 850MHZ
900MHZ 900MHZ
1900MHZ 1900MHZ
2100MHZ 2100MHZ
4G Network:
1800MHZ 1800MHZ
1900MHZ 1900MHZ
2100MHZ 2100MHZ
2300MHZ 2300MHZ
2600MHZ 2600MHZ
Click to expand...
Click to collapse
I have the same problem have you find any solutions?
Having the same problem with Mi5 128gb pro
Any solution?
Zannettou365 said:
I have the same problem have you find any solutions?
Click to expand...
Click to collapse
Same for me. I also have mi5 pro 128...
Sent from my X5pro using XDA-Developers mobile app
I don't have the 'prefer LTE' option under mobile network but still can connect to LTE network in my country (1800Mhz), this happens for both china stable 7.5.6.0 and global stable 7.5.2.0 ROM
Can you update to lastest Xiaomi.eu version (Miui 8) and check the 4G on that 1800band?