Develop Bugs

Universal questions

Hi guys, i am getting a universal from the UK in about 2 weeks and i have some questions.
1. Is it unlockable yet?
2. Is bluetooth stable, not cutting off during calls and stuff?
3. Since it is WCDMA, does that mean i can use it with CDMA services here in the states like sprint and Verizon?
4. What is the best case for it
Thanks for reading my questions, you replies will be greatly appreciated.

obiesoft said:
Hi guys, i am getting a universal from the UK in about 2 weeks and i have some questions.
1. Is it unlockable yet?
2. Is bluetooth stable, not cutting off during calls and stuff?
3. Since it is WCDMA, does that mean i can use it with CDMA services here in the states like sprint and Verizon?
4. What is the best case for it
Thanks for reading my questions, you replies will be greatly appreciated.
Click to expand...
Click to collapse
Hi Obiesoft,
1. Not yet to my knowledge... Keep an eye on the 'universal' unlocker from this forum. An app that is updated over and over to add support for new phones.
2. Did not try yet, sorry, one of the other ones ?
3. Most likely not. UMTS here in Europe is on 2100 Mhz, as radio bands are of course regulated per country, you might want to see with your wireless provider if they a) use 'UMTS or WCDMA' as a standard, and b) if they also operate on the 2100 Mhz band. In the phone there is only one band available for UMTS connections.
GSM in general is provided in bigger cities in the states, you have to check which wireless provider has it in your area, some might even have the Qtek 9000 with an interesting price if you take one of their plans.
(T-Mobile) Be carefull nevertheless, the USA has GSM services on 1900 Mhz and on 850 Mhz, the Universal can do w/o a problem the 1900 Mhz band, but to my knowledge not the 850 Mhz band. You would be out of luck if your cellular provider only provides services on this band. Check also if you have to be a lot in rural areas, as far as I notices coverage there is way less on GSM systems.
4. I'm happy with the 'leatherishlike' one it comes with. Sleek, and it does protect it very well. Snug, just no belt-clip, that's all.
Hope you'll be having fun with your device ! (Well, all depends of course if you can get it either sim-unlocked or from one of your local providers...)
Willem

Thanks
Thanks for your reply
I hope there will be an unlocker soon, i have Tmobile here in Florida, i will call to find out of they use 1900 or 850Mhz. I will probably try asking Tmobile UK or something.
The reason for me asking if it will work with USA CDMA is that i also have an account with a CDMA provider so it would be cool if i could use two providers on one phone, probably switching between them.
I have a MDAIII with WM5 and the bluetooth does not work, keeps d/c so i hope this one stays on with the MDA PRO.

Re: Thanks
obiesoft said:
Thanks for your reply
I hope there will be an unlocker soon, i have Tmobile here in Florida, i will call to find out of they use 1900 or 850Mhz. I will probably try asking Tmobile UK or something.
The reason for me asking if it will work with USA CDMA is that i also have an account with a CDMA provider so it would be cool if i could use two providers on one phone, probably switching between them.
I have a MDAIII with WM5 and the bluetooth does not work, keeps d/c so i hope this one stays on with the MDA PRO.
Click to expand...
Click to collapse
I know that T-Mobile Germany sells the device w/o SIMlock. Might be an option. The QTEK versions of the device come also w/o SIMlock. I don't know if T-Mobile Germany ships the device outside europe, you might want to have a look at http://www.expansys-usa.com, they have a Spanish version of the QTEK you can easily reflash to the WWE version, new and not locked for a whopping 1045 USD.
P.S. I have no commercial relation to either T-Mobile or Expansys and both links are provided only for informational purposes.

Obiesoft, I have PM'd you.

simlock
t-mobile.germany has no SimLock - that's right!
but they did a NETLock!! - you#ve got to pay 100-300 € to get it unlocked for other networks. If You know where to find Band-Information i can tell you if it supports yours.

Universal is not working on CDMA One/CDMA 2000/EVDO networks.
In US, it will work for voice calls and GPRS on the 1900 networks like T-Mobile US. You will have to wait for T-Mobile US to launch UMTS (WCDMA) as it is planned, but I'm not sure they will use the same bands as in Europe.

MDA PRO
I did not check here sooner, my girlfriend is in london and she got the MDA PRO since she just renewed her contract. I am guessing it will be locked cause she is just shipping it and i will get it next week. Tmobile UK said they can unlock it for 15 pounds and it will take 28 days, so in the mean time i am hoping there is another way for me to unlock it.

[Q] 4g compatibilty japanese Zenfone 2

Hi there,
I just bought a zenfone 2 in Japan and brought it back to France. Everything is working fine except for the 4g that is never "detected" by my phone even though the model I bought is supposedly 4g compatible. I only get the H+ symbol (whereas I had no issue getting it with the same sim on my previous phone)
Now I now that Orange in France uses frequencies 800 Mhz and 2600 Mhz for the 4g but I can't manage to find the information for the japanese version of my phone that was bought sim free (not through an operator like ntt docomo or else). And I don't know if it can be changed in a way or another.
Any idea how to debug this and eventually correct it if it is only possible ?
My zenfone is rooted as I figured it might maybe help to tweak something..
Thanks in advance

ASUS phone 4G/LTE band compatibility varies by region. Please check compatibility with local carriers If intending to use your ASUS phone outside the original purchase region.
Please see ZenFone 2 support band list: http://www.asus.com/us/support/FAQ/1011352
Please also check with your local provider if you have correct APN settings: http://www.asus.com/us/support/FAQ/1011940/
ASUS ZenFone Quick Service and FAQ:
http://www.asus.com/us/support/self-service/11/
http://www.asus.com/us/Phones/ZenFon...esk_knowledge/
Best regards,
ASUS_USA

Asus_USA said:
ASUS phone 4G/LTE band compatibility varies by region. Please check compatibility with local carriers If intending to use your ASUS phone outside the original purchase region.
Please see ZenFone 2 support band list: http://www.asus.com/us/support/FAQ/1011352
Please also check with your local provider if you have correct APN settings: http://www.asus.com/us/support/FAQ/1011940/
ASUS ZenFone Quick Service and FAQ:
http://www.asus.com/us/support/self-service/11/
http://www.asus.com/us/Phones/ZenFon...esk_knowledge/
Best regards,
ASUS_USA
Click to expand...
Click to collapse
Thank you for your reply.
However, on the link you provided it is specified that the 4g capabilities of my phone (ZE551ML) with a worldwide firmware (WW) which I flashed on my phone are as follows:
"FDD-LTE: (WW)
2100MHz(1)/1900MHz(2)/1800MHz(3)/1700MHz
AWS(4)/850MHz(5)/2600MHz(7)/900MHz(8)/800MHz(20)"
I'm not sure how to interpret it but as my carrier specifies the 4G frequencies for FDD are 800Mhz and 2600Mhz it should be fully compatible ?
As for the APN I set it just as specified on my carrier website.
My phone still seems limited to HSPA+.

Same issue
My phone was bought from India. I now live in the UK and I don't get 4G on channel 20, 800MHz. My phone it's not rooted. My software begin is WW. No 4G. The disclaimer seems to be a bit deceptive.

You are out of luck I think. The Japanese model has LTE bands 1,2,3,4,5,6,8,9,18,19 & 28. Orange in France uses LTE bands 7 & 20. So you are stuck with 3G unfortunately.

[Q] Lenovo Z90-7 (VIBE SHOT) 4G UK HELP PLEASE?

Hi guys,
I have just bought this phone and flashed it with the latest firmware Android 5.1 as per the post on this forum. I am now very worried because my phone only seems to be connectiong to 2.4ghz network instead of 5ghz. Also I cannot get mobile data working.

What ROM/kernel did you flash? Many ROMs run 5.1.x
Sent from my Nexus 6 using Tapatalk

Rep7ile said:
What ROM/kernel did you flash? Many ROMs run 5.1.x
Sent from my Nexus 6 using Tapatalk
Click to expand...
Click to collapse
Hi I used this rom Z90a40_USR_S118_1505272046_Q2020131.4_ROW_qpst
which was mentioned here on the forum as the best for Android 5.1

Hey man, I've done some research and it seems your ROM/phone should support LGT(4G). I would highly suggest completely wiping your phone, reflash ROM/ Gasps/ kernel (if you have one) and see if the issue persists
Sent from my Nexus 6 using Tapatalk

The seller says I can send the item back for a full refund but unsure if he will give me a refund as I've changed the ROM to 5.1 The worst thing would be sending the device back to China

Okay, have you tried manually setting your APN? Fallow the steps below and findnthe APN settings online for your carrier, let me know what happens.
Many users have told me their 3G/4G LTE data network connection is broke after installing a custom ROM. *Well, in most of these cases, it can easily be fixed by manually setting the APN (Access Point Name). *This applies to any GSM networks such as*AT&T or T-Mobile. *For CDMA networks like Sprint or Verizon, they also use APNs but you don’t have to set them and should work out of the box.
Every carrier uses its own APN Settings to get its 3G/4G LTE network working on an Android smartphone or tablet device. *Now, these APN settings are usually “downloaded” automatically to your*phone*when you insert a SIM card. *BUT, there are times where the APN are not selected automatically OR when the APN settings are not downloaded.
In those instances, your 3G/4G LTE data will not work but that can easily be fixed.
Step 1. First, browse your Settings menu and find the “Access Point Names” menu. *This is usually under “Mobile Network Settings” or “More*mobile Networks or “Mobile Networks” under Settings menu depending on the Android device used.
Step 2. Once you are in the APN Settings menu, first thing you should check it that the APN is on the correct one. *If the correct APN is not checked (sometimes this happens), simply check ON the correct APN for your carrier. *That will make your 3G/4G LTE data working right away
tep 3. There are also times where the wrong APN is listed or there’s simply no APNs listed. *In these rare cases, you can simply add a new APN, hit the “+” button.
Step 4. For APN setting, the “Name” can be anything. *“APN” setting is the most important, usually you only have to fill this out for your phone to work.
For T-Mobile, you can set the “APN” to “fast.t-mobile.com”. *AT&T, you can set “APN” to “phone” or “pta”.
Now setting “APN” will get your data working but you still need to input additional settings to get your MMS working.
ep 5. You can usually Google APN settings for your carrier. *Whether you are in Thailand or in the U.S., simply Google for your APN settings like:
Google “t-mobile APN 4G LTE” for T-Mobile 4G LTE APN settings in the U.S.
Google “True Move APN 3g” for True Move 4G APN settings in Thailand.
Eventually, you should be able to find the full APN settings for your carrier whether you live in Hawaii or on North Pole.
Once you have the correct APN settings, simply input them into your APN settings on the phone
Step 7. Next, make sure to select the new APN Setting you have saved. *Within 5-30 seconds, your phone should start picking up 3G or 4G LTE signals and your data should be working again on the phone.
Sent from my Nexus 6 using Tapatalk

desi112 said:
Hi guys,
I have just bought this phone and flashed it with the latest firmware Android 5.1 as per the post on this forum. I am now very worried because my phone only seems to be working on 3G. When I go into settings and network it only gives me the options to pick a 3G network. I did a lot of research before buying this phone and was assured it would work on 4G within the UK my old phone the Sony Xperia ZR worked on 4G fine. I do have the latest nano sim.
Here are the details of the Lenovo Z90-7 As per GSM Arena
Technology
GSM / HSPA / LTE
2G bands GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
3G bands HSDPA 850 / 900 / 1900 / 2100
4G bands LTE 800 / 1800 / 2100 / 2600 - Lenovo Z90-7
And from my network operator's webpage I get the following info
4G from Tesco Mobile (o2) uses the following network frequencies:
800 MHz (0.8 GHz)
Am I having this problem as I flashed it with new firmware?
Click to expand...
Click to collapse
I believe the phone doesn`t have the LTE 800 frequency.
Search other websites than gsm arena.
That`s why you don`t get 4G.

Hi Friends,
Thanks for the quick replies I really appreciate the help. In regards to the APN settings I've checked these and these seem to be correct.
So it *Should* work EE

Interesting, I was hoping the APN settings were the cause. I'm sorry you couldn't fix your issue. I'm sure you will have better luck with your next device.
Sent from my Nexus 6 using Tapatalk

desi112 said:
Hi Friends,
Thanks for the quick replies I really appreciate the help. In regards to the APN settings I've checked these and these seem to be correct.
Valter84 you are correct I spoke to the seller and he advised that there is a mistake on the listing the phone does not support the LTE 800Mhz frequency.
So it *Should* work in the UK on the network EE which uses Band 3 FDD LTE (1800mhz). I've tried an EE sim and it still does not work at all on 4G.
Click to expand...
Click to collapse
Hi, I have the same trouble as you , anyway I have not flashed my Z90-7 yet. My chinesse seller from Aliexpress claims , that this phone supports all usual LTE frequencies including 800 Mhz.
But I can use here in Czech republic at T mobile provider only 1800 Mhz which covers only Prague and Mlada Boleslav . Rest of our country covers LTE on 800 Mhz only.

vlada.b said:
Hi, I have the same trouble as you , anyway I have not flashed my Z90-7 yet. My chinesse seller from Aliexpress claims , that this phone supports all usual LTE frequencies including 800 Mhz.
Click to expand...
Click to collapse

desi112 said:
vlada.b said:
Hi, I have the same trouble as you , anyway I have not flashed my Z90-7 yet. My chinesse seller from Aliexpress claims , that this phone supports all usual LTE frequencies including 800 Mhz.
Click to expand...
Click to collapse
This seems to be a worldwide problem outside China. It is nothing to do with APN settings, etc.
A company is selling this phone on Amazon USA and they have specifically mentioned 4G does not work in the USA.
I am based in the UK and 4G doesn't work. I have flashed the phone and have now android 5.1 installed on it, but until official EU version of this phone is released we will be stuck with 3G
Click to expand...
Click to collapse

barcomi said:
desi112 said:
This seems to be a worldwide problem outside China. It is nothing to do with APN settings, etc.
A company is selling this phone on Amazon USA and they have specifically mentioned 4G does not work in the USA.
I am based in the UK and 4G doesn't work. I have flashed the phone and have now android 5.1 installed on it, but until official EU version of this phone is released we will be stuck with 3G
Click to expand...
Click to collapse
Guys, just to let you know the phone works 4G on UK EE network, but not on O2.
Click to expand...
Click to collapse

I need help. can't use 5ghz network.
desi112 said:
Hi guys,
I have just bought this phone and flashed it with the latest firmware Android 5.1 as per the post on this forum. I am now very worried because my phone only seems to be connectiong to 2.4ghz network instead of 5ghz. Also I cannot get mobile data working.
Click to expand...
Click to collapse
I can't connecting 5ghz too.
Just only can connecting 2.4ghz.
I can't find 5ghz network in WLAN list.
I succeeded installing the ROM. (use MiFlash tool)
ROM Version: Z90-a40_S118_1505272008_ROW
So, my phone's android version is 5.1
Z90-7 device can't support 5ghz WIFI network? or ROM's problem?
I want to know about this problem's solutions. (I want to use 5ghz wifi network!)
If anybody answer for me, I'll be very grateful.
Thanks for reading.

Chinese markets are deceiving customers
vlada.b said:
Hi, I have the same trouble as you , anyway I have not flashed my Z90-7 yet. My chinesse seller from Aliexpress claims , that this phone supports all usual LTE frequencies including 800 Mhz.
But I can use here in Czech republic at T mobile provider only 1800 Mhz which covers only Prague and Mlada Boleslav . Rest of our country covers LTE on 800 Mhz only.
Click to expand...
Click to collapse
Dear people, wake up, many Chinese markets are deceiving customers by providing them misleading information. LTE bands is one clear example. Chinese LTE bands are diferent and they just flash the device's ROM for multi-language and add Google Play to make it "international version" but it is not. DON'T BUY IT!
I double checked with this company minideal.net which i cannot recommend. The company confirmed full FDD LTE (4G) functionality on following frequency bands: 800/1800/2100/2600MHz. But my smartphone IS NOT WORKING on 800MHz in The Czech Republic because it is only 1800/2100/2600MHz in fact. Within the PayPal Dispute and Claim they completely turned around their statements concerning LTE bands.
Complete tests were made with my network operator provider to rull out other problems. You can easily check that in these comments and in some fair e-shops where they don't twist the truth.

Mydoma said:
Dear people, wake up, many Chinese markets are deceiving customers by providing them misleading information. LTE bands is one clear example. Chinese LTE bands are diferent and they just flash the device's ROM for multi-language and add Google Play to make it "international version" but it is not. DON'T BUY IT!
I double checked with this company minideal.net which i cannot recommend. The company confirmed full FDD LTE (4G) functionality on following frequency bands: 800/1800/2100/2600MHz. But my smartphone IS NOT WORKING on 800MHz in The Czech Republic because it is only 1800/2100/2600MHz in fact. Within the PayPal Dispute and Claim they completely turned around their statements concerning LTE bands.
Complete tests were made with my network operator provider to rull out other problems. You can easily check that in these comments and in some fair e-shops where they don't twist the truth.
Click to expand...
Click to collapse
This is correct, the phone doesn't work on 800MHz. However it should because Qualcom 615 supports 800MHz. the reason it doesn't work is because the modem is probably locked within the ROM. I am hoping once this phone is release european version then it should work at 800MHz.

Czech version of Lenovo Vibe Shot working on 800Mhz LTE seamlessly
barcomi said:
This is correct, the phone doesn't work on 800MHz. However it should because Qualcom 615 supports 800MHz. the reason it doesn't work is because the modem is probably locked within the ROM. I am hoping once this phone is release european version then it should work at 800MHz.
Click to expand...
Click to collapse
Hi, i already have had the European version of Lenovo Vibe Shot (chinese name Lenovo Z90-7) in my hands. I purchased it recently to compare the Czech and the Chinese model concurrently. All worked perfectly well with the Czech model. The device connected to 800MHz LTE band (band 20) INSTANTLY after the Android system start. No setting necessary at all. It connected to 800MHz T-mobile band in the Czech Republic. While with the Chinese only 3G or less! Another LTE band (2100MHz perhaps) worked well - Vodafone Czech Republic. So LTE hardware is ok but 800MHz missing...
The test is here: youtube.com/watch?v=Mv5RoN_BYSc
No doubt i was intentionally deceived by the seller namely minideal.net; and many others customers are being deceived the same way!

coptrade said:
Hi, i already have had the European version of Lenovo Vibe Shot (chinese name Lenovo Z90-7) in my hands. I purchased it recently to compare the Czech and the Chinese model concurrently. All worked perfectly well with the Czech model. The device connected to 800MHz LTE band (band 20) INSTANTLY after the Android system start. No setting necessary at all. It connected to 800MHz T-mobile band in the Czech Republic. While with the Chinese only 3G or less! Another LTE band (2100MHz perhaps) worked well - Vodafone Czech Republic. So LTE hardware is ok but 800MHz missing...
The test is here: youtube.com/watch?v=Mv5RoN_BYSc
No doubt i was intentionally deceived by the seller namely minideal.net; and many others customers are being deceived the same way!
Click to expand...
Click to collapse
This is amazing. I hope soon someone will release the european ROM, so I can update my chinese phone with european ROM. Do you think the Chinese phone will work on 800MHz with the European ROM?

barcomi said:
This is amazing. I hope soon someone will release the european ROM, so I can update my chinese phone with european ROM. Do you think the Chinese phone will work on 800MHz with the European ROM?
Click to expand...
Click to collapse
Well, i consulted this with some mobile phone services earlier and they did not recommend updating the ROM like that. Your device can end up dead after it. The ROM must be perfectly tuned to the particular HW specification of your device to avoid the fatal consequences. It is quite risky... i was thinking the same way. I am disputing the seller via PayPal asking for partial refund to be able to re-sell the phone to someone who can do without 800MHz.
Also you cannot freely update the android system without loosing the multi-language and Google Play... So shopping mobile phones in China? NOT A GOOD EXPERIENCE FOR ME!
---------- Post added at 04:01 PM ---------- Previous post was at 03:44 PM ----------
coptrade said:
Hi, i already have had the European version of Lenovo Vibe Shot (chinese name Lenovo Z90-7) in my hands. I purchased it recently to compare the Czech and the Chinese model concurrently. All worked perfectly well with the Czech model. The device connected to 800MHz LTE band (band 20) INSTANTLY after the Android system start. No setting necessary at all. It connected to 800MHz T-mobile band in the Czech Republic. While with the Chinese only 3G or less! Another LTE band (2100MHz perhaps) worked well - Vodafone Czech Republic. So LTE hardware is ok but 800MHz missing...
The test is here: youtube.com/watch?v=Mv5RoN_BYSc
No doubt i was intentionally deceived by the seller namely minideal.net; and many others customers are being deceived the same way!
Click to expand...
Click to collapse
Ok, i understand your point. I was thinking the same way. Some mobile phone services would refuse to update the ROM like that though, because it can kill the mobile completely. And who will take the responsibility? The Chinese dishonest dealers should! Let us tell them, we don't like their deception and lies! They are playing the "we don't know" game, but they surely know enough about the differences between Chinese and non-Chinese LTE bands.
But yes, there should be a way to change the ROM the same way the distributors of the real European version of this phone do it. Only where shall we get that ROM and ROM update done? Because, as i have already experienced, the local (Czech) Lenovo representation has no interest in helping owners of Lenovo products purchased in China. How predicable...
---------- Post added at 04:06 PM ---------- Previous post was at 04:01 PM ----------
desi112 said:
The seller says I can send the item back for a full refund but unsure if he will give me a refund as I've changed the ROM to 5.1 The worst thing would be sending the device back to China
Click to expand...
Click to collapse
Did you pay via PayPal? You can dispute or claim... Because i say it is just intentional form of deception what they do...
---------- Post added at 04:10 PM ---------- Previous post was at 04:06 PM ----------
barcomi said:
desi112 said:
This seems to be a worldwide problem outside China. It is nothing to do with APN settings, etc.
A company is selling this phone on Amazon USA and they have specifically mentioned 4G does not work in the USA.
I am based in the UK and 4G doesn't work. I have flashed the phone and have now android 5.1 installed on it, but until official EU version of this phone is released we will be stuck with 3G
Click to expand...
Click to collapse
You are right some (many) Chinese dealers are cheating... and we pay for it.
Click to expand...
Click to collapse

coptrade said:
Well, i consulted this with some mobile phone services earlier and they did not recommend updating the ROM like that. Your device can end up dead after it. The ROM must be perfectly tuned to the particular HW specification of your device to avoid the fatal consequences. It is quite risky... i was thinking the same way. I am disputing the seller via PayPal asking for partial refund to be able to re-sell the phone to someone who can do without 800MHz.
Also you cannot freely update the android system without loosing the multi-language and Google Play... So shopping mobile phones in China? NOT A GOOD EXPERIENCE FOR ME!
I changed my ROM, but it is just simplified ROM (done by chinese guys) without the bloatware ...
I got it from this link
http://forum.xda-developers.com/android/general/lenovo-z90-7-vibe-shot-international-t3148018
Click to expand...
Click to collapse

Switch motherboard N910P

Hello i have n910P, but it isnt work with europe LTE bands, then i want to switch motherboard to N910F, is it possible, or there are some methods to unlock LTE bands on P?

You will need to sell and get a GSM capable model. Switching motherboards just invites problems. Unfortunately the CDMA radios cant tune to the Euro frequencies afaik..
Almost every GSM model will work..just look into your local LTE bands available and research which devices support said bands..most will be at least dual-band, some will be tri-band, and some will be quad-band. Hope this helps, cheers

Does the USA T-Mobile version supports LTE band 20 (800 DD)?

I wanna buy this awesome phone from eBay and use it in my home country - Czech Republic, but there are still two things I don't know, so I'm holding off.
Can anyone, who owns the USA T-Mobile (1789-04) version, check for me, if it supports LTE band 20 (800 DD)? I scour the internet for the answer and some sites says it does, but some it doesn't.
And a lil' bit stupid question: Is there a chance, it will work locked, if I will use it with Czech Republic T-Mobile sim card?
Thank you all in advance for any answer.

as far as i can tell the T-MO variant does in fact support band 20, and the spec sheet from t-mo says the same.
https://support.t-mobile.com/docs/DOC-36016

That's what I thought too, but their normal website (where you can order Moto Z2 Force online) says otherwise (can't post link):
Frequency
LTE: 1, 2, 3, 4, 5, 7, 12, 13

According to this Network signal guru app, it looks like my T-Mobile version of the Z2 Force supports band 20.

Thanks for the info. I found on Reddit, that it should work like this: T-mobile only lists the ones it's network uses. If it's roaming it will use the other bands, or if you flash unlocked firmware it will be able to use those bands as well.
So according to this, the "other bands" should be listed on every phone's tech specs T-Mobile website.