Change parts and convert a D820 to D821? - Nexus 5 Q&A, Help & Troubleshooting

Is it possible to change the radio antenna or whatever is the hardware piece to get LTE bands of D821 (I need band 7 / 2,5 mhz in Brazil) And if its possible, what is the piece and where to buy it? (Links to Ebay very welcome! )
Anyway, thanks!

Hello friend, I am in it, but I want to convert a D821, D820 in, haha, I need the band 17 for Bolivia

kevast said:
Hello friend, I am in it, but I want to convert a D821, D820 in, haha, I need the band 17 for Bolivia
Click to expand...
Click to collapse
you can check this for LTE, not sure about band 17. No need to replace anything. just some edit. tinkering time. [Radio] Enable LTE Band 3 and 8 on D820 and LTE Band 2 and 4 on D821

anazhd said:
you can check this, no need to replace anything. just some edit. tinkering time. [Radio] Enable LTE Band 3 and 8 on D820 and LTE Band 2 and 4 on D821
Click to expand...
Click to collapse
I read this topic a few weeks ago, but is it possible to turn on the band 7 / 2,5Mhz? Because I think is a hardware issue and some people told that on the topic

Toper_ said:
I read this topic a few weeks ago, but is it possible to turn on the band 7 / 2,5Mhz? Because I think is a hardware issue and some people told that on the topic
Click to expand...
Click to collapse
I'm not sure about that. Never tried anything other than LTE band. But theoretically speaking, it's possible. Changing parts in your phone is way messy.

anazhd said:
I'm not sure about that. Never tried anything other than LTE band. But theoretically speaking, it's possible. Changing parts in your phone is way messy.
Click to expand...
Click to collapse
I just want to know how to do it, never seen this before =\

Sure just swap the motherboard from a D821 in to your current phone.

tebore said:
Sure just swap the motherboard from a D821 in to your current phone.
Click to expand...
Click to collapse
Change the whole motherboard!? Oh no, no ones sell it here =\
I need to wait Nexus 6P or import anyway, but $1 costs R$4,20 now... :crying:

You and the second poster could just swap motherboards

wangdaning said:
You and the second poster could just swap motherboards
Click to expand...
Click to collapse
...or just swap phones!

replace D821 motherboard with D820 one
pls help... can i replace D821 motherboard with D820 one??

undeadmax said:
pls help... can i replace D821 motherboard with D820 one??
Click to expand...
Click to collapse
Yes, you can.

Related

Will nexus 5 work in Europe?

My current phone can't work in Europe which apparently uses a different system than in the US. Will the nexus 5 work in Europe?
If you buy a nexus 5 from the US you cannot get 4G/LTE in Europe. If you buy a nexus 5 from anywhere it is sold through Google play that is not the US/Canada you will get 4G/LTE. 3G works as per normal.
Sent from my Nexus 5 using Tapatalk
As above.... everything except LTE will work if using a D820 in Europe torvalds D821 in US /Canada
-----------------------
Sent via tapatalk.
I do NOT reply to support queries over PM. Please keep support queries to the Q&A section, so that others may benefit
rootSU said:
As above.... everything except LTE will work if using a D820 in Europe torvalds D821 in US /Canada
Click to expand...
Click to collapse
What are D820 and torvalds D821?
They are the 2 models of Nexus 5 available, D820 for US and Canada, D821 for the rest of the World
Anderson2 said:
What are D820 and torvalds D821?
Click to expand...
Click to collapse
hahah. You know you're a geek when your auto correct knows the name "Torvalds". I was trying to type "or a"
There is no way to have D820 working on Europe LTE ?
bobby8921 said:
There is no way to have D820 working on Europe LTE ?
Click to expand...
Click to collapse
No because LTE uses a different frequency in europe
Yo, Brainiacs. Are you aware that Europe is not a single country ?
There are like dozen different LTE frequencies there.
http://en.wikipedia.org/wiki/List_of_LTE_networks#Europe
Which country are we talking here about specifically ?
jodvova said:
Yo, Brainiacs. Are you aware that Europe is not a single country ?
There are like dozen different LTE frequencies there.
http://en.wikipedia.org/wiki/List_of_LTE_networks#Europe
Which country are we talking here about specifically ?
Click to expand...
Click to collapse
yop Brainiac, can't you see that all european countries use bands 3, 7 and 20 ?
So the country doesn't matter
Is this setting set in stone in the hardware, or will devs be able to hack the phone's radio firmware to get band 3/7/20 support? I don't need CDMA.
tyteen4a03 said:
Is this setting set in stone in the hardware
Click to expand...
Click to collapse
It's not a setting, but yes it is a hardware limitation
rootSU said:
It's not a setting, but yes it is a hardware limitation
Click to expand...
Click to collapse
Care to explain a little bit more detailed about the hardware difference between 820 and 821, if you know?
I am just curious about what did they change that much.

[Q] Overseas Usage

I'm moving overseas and I was wondering if my N5 will have any issues. Such as missing frequencies and what not. If so, could I flash new ones?
D821 gets LTE pretty much everywhere except North America. D820 only gets LTE in north america
HSPA and lower works on both pretty much everywhere.
Though, you haven't given specifics so I in turn, can not be specific
rootSU said:
D821 gets LTE pretty much everywhere except North America. D820 only gets LTE in north america
HSPA and lower works on both pretty much everywhere.
Though, you haven't given specifics so I in turn, can not be specific
Click to expand...
Click to collapse
Just looked on the back of my phone, I have D820. Should I get a new phone?
dinggus said:
Just looked on the back of my phone, I have D820. Should I get a new phone?
Click to expand...
Click to collapse
Where are you moving to?
rootSU said:
Where are you moving to?
Click to expand...
Click to collapse
Belgium. Sorry I wasn't more specific.
dinggus said:
Belgium. Sorry I wasn't more specific.
Click to expand...
Click to collapse
So you'll still get 2g, 3g and HSPA+ most likely. You'll just miss out on LTE
rootSU said:
So you'll still get 2g, 3g and HSPA+ most likely. You'll just miss out on LTE
Click to expand...
Click to collapse
Alright. Don't know if I could go backwards. Lol.
dinggus said:
Alright. Don't know if I could go backwards. Lol.
Click to expand...
Click to collapse
There was a thread I read a while back that told ya how to unlock the other LTE bands. You do lose the north America ones. I guess only so.many can be active at once.
Sent from my Nexus 5 using XDA Free mobile app
31ken31 said:
There was a thread I read a while back that told ya how to unlock the other LTE bands. You do lose the north America ones. I guess only so.many can be active at once.
Sent from my Nexus 5 using XDA Free mobile app
Click to expand...
Click to collapse
Its only a couple of bands. You can't change a d820 into a d821 or vice versa. Just swap a couple to work in China. There is a thread though...
31ken31 said:
There was a thread I read a while back that told ya how to unlock the other LTE bands. You do lose the north America ones. I guess only so.many can be active at once.
Sent from my Nexus 5 using XDA Free mobile app
Click to expand...
Click to collapse
rootSU said:
Its only a couple of bands. You can't change a d820 into a d821 or vice versa. Just swap a couple to work in China. There is a thread though...
Click to expand...
Click to collapse
Thanks guys. You wouldn't have to know the same info for a Note 3?
dinggus said:
Thanks guys. You wouldn't have to know the same info for a Note 3?
Click to expand...
Click to collapse
Samsung devices typically are much more restricted. Not sure because of snapdragon whether it is similar. Ask in note 3 forum.

Nexus 5 LTE Band 40 missing

So the carriers in India has only LTE Band 40 in my state. And my Nexus 5 seems to be missing the band 4 that is 2300MHz.
On the other hand LG G2 has the same Snapdragon 800 and has the band 40. Any way in which we can modify the modem to include the band 40 in it?
I have a LTE connection yet i can't use it. Duh.
Any help is appreciated...
You might have some luck here http://forum.xda-developers.com/google-nexus-5/general/sprint-enable-tri-band-lte-n5-t2530061 or here http://forum.xda-developers.com/google-nexus-5/general/radio-enable-lte-band-3-nexus-5-d820-t2928561
peachpuff said:
You might have some luck here http://forum.xda-developers.com/google-nexus-5/general/sprint-enable-tri-band-lte-n5-t2530061 or here http://forum.xda-developers.com/google-nexus-5/general/radio-enable-lte-band-3-nexus-5-d820-t2928561
Click to expand...
Click to collapse
Yeah I have already gone through those threads before. They seem to add the bands which are locked becoz of the US only and global version. More of an unlock thing. What i am asking is a bit more noobish [emoji14] like adding the band 40 to the LTE bands. Which is not there. Hope you get me.
wrick17 said:
Yeah I have already gone through those threads before. They seem to add the bands which are locked becoz of the US only and global version. More of an unlock thing. What i am asking is a bit more noobish [emoji14] like adding the band 40 to the LTE bands. Which is not there. Hope you get me.
Click to expand...
Click to collapse
You already know that B40 is not there in the first place, instead of locked by software - if the hardware lacks it then sorry, new phone please.
Sent from Google Nexus 4 @ CM12.1
[WARNING: XDA Premium 4.0.13+ lacks Signature function - do not update]

can't connect with 4g, only 3g

Dear friends, I have Nexus 5 but 4G doesn't works . My service provider supports 4G service at 800MHz and 1800MHz as it shown here http://www.gsmarena.com/network-bands.php3?sCountry=Morocco , but my nexus 5 d 821 does not work with 4G, I want to ask that if there is a solution like a roms or others things.
Thanks in advance.
800MHz and 1800MHz are LTE bands 20 and 3 which are supported by your device but those information are for Morocco. Do you have the same information from your carrier?
Primokorn said:
800MHz and 1800MHz are LTE bands 20 and 3 which are supported by your device but those information are for Morocco. Do you have the same information from your carrier?
Click to expand...
Click to collapse
yes my carrier has 1800MHz , but i can't find or connect to 4G on everywhere
Chouiyekh said:
yes my carrier has 1800MHz , but i can't find or connect to 4G on everywhere
Click to expand...
Click to collapse
Do you have a map that could show you the cell towers around you?
Is LTE enabled in your phone settings? (preferred network type)
Primokorn said:
Do you have a map that could show you the cell towers around you?
Is LTE enabled in your phone settings? (preferred network type)
Click to expand...
Click to collapse
no i don't have a map, yes LTE is enable on my phone settings.
Chouiyekh said:
Dear friends, I have Nexus 5 but 4G doesn't works . My service provider supports 4G service at 800MHz and 1800MHz as it shown here http://www.gsmarena.com/network-bands.php3?sCountry=Morocco , but my nexus 5 d 821 does not work with 4G, I want to ask that if there is a solution like a roms or others things.
Thanks in advance.
Click to expand...
Click to collapse
hey Mate,
i have Got the same problem just like you.
i have a white nexus 5 (D821) 32Gb version.
i can't connect to 4G network,unless i'm near the 4G tower.
sometimes the phone loses signal and switches to ''emergency calls only" mode even when i force switching to 3G by typing *#*#4636#*#*
If anyone you kno how to solve this problem or anyone else here do,could you possibly help me out with this.
i'm from méknes by the way.
ZaKaRia OuH said:
hey Mate,
i have Got the same problem just like you.
i have a white nexus 5 (D821) 32Gb version.
i can't connect to 4G network,unless i'm near the 4G tower.
sometimes the phone loses signal and switches to ''emergency calls only" mode even when i force switching to 3G by typing *#*#4636#*#*
If anyone you kno how to solve this problem or anyone else here do,could you possibly help me out with this.
i'm from méknes by the way.
Click to expand...
Click to collapse
hi friend, nice to meet you
i will try to give you a summary of what i reached in the end.
first thing, i discovered that the nexus 5 that i have is not a D821 but it's a D820 means it's the version especially for USA networks, and this mean that 4G of USA networks works on different bands than ours in Morocco, so after finding exactly where the problem, i began looking for a solution and i found this: http://forum.xda-developers.com/google-nexus-5/general/radio-enable-lte-band-3-nexus-5-d820-t2928561 and after application the lesson, i got the 4G connection on my phone, and it's work very well till now.
this is my story, and i think it's a little different than mine.
Chouiyekh said:
hi friend, nice to meet you
i will try to give you a summary of what i reached in the end.
first thing, i discovered that the nexus 5 that i have is not a D821 but it's a D820 means it's the version especially for USA networks, and this mean that 4G of USA networks works on different bands than ours in Morocco, so after finding exactly where the problem, i began looking for a solution and i found this: http://forum.xda-developers.com/google-nexus-5/general/radio-enable-lte-band-3-nexus-5-d820-t2928561 and after application the lesson, i got the 4G connection on my phone, and it's work very well till now.
this is my story, and i think it's a little different than mine.
Click to expand...
Click to collapse
i'm glad you answered.
and i'm glad you figured that out and solved your problem.
my case is somewhat different from yours.
before enabling those bands,you never caught 4G signal.
but for me,i do get 4G signal and connect to it,i access internet data, surfe,and make calls,but it's only when i'm near a 4G network tower.
which means the band is already activaed,it's just a deal with the signal strength.
if you can help me,i'd really appreciate that.
i'm really confused wether to flash those drivers or do something about the radio,cuz this problem brings about another problem which is battery drain,
my battery drains faster cuz the phone keeps searching for network.
just to let you know,when i go to bootloader it says Lg nexus 5 D821 (H)
ZaKaRia OuH said:
i'm glad you answered.
and i'm glad you figured that out and solved your problem.
my case is somewhat different from yours.
before enabling those bands,you never caught 4G signal.
but for me,i do get 4G signal and connect to it,i access internet data, surfe,and make calls,but it's only when i'm near a 4G network tower.
which means the band is already activaed,it's just a deal with the signal strength.
if you can help me,i'd really appreciate that.
i'm really confused wether to flash those drivers or do something about the radio,cuz this problem brings about another problem which is battery drain,
my battery drains faster cuz the phone keeps searching for network.
just to let you know,when i go to bootloader it says Lg nexus 5 D821 (H)
Click to expand...
Click to collapse
i understood your issue and i wish that i were able to give you a hand, but unfortunatly, i hope you find your way
my best regards
Chouiyekh said:
i understood your issue and i wish that i were able to give you a hand, but unfortunatly, i hope you find your way
my best regards
Click to expand...
Click to collapse
thanks anyway dawg , i'm pleased to discuss with you
Chouiyekh said:
i understood your issue and i wish that i were able to give you a hand, but unfortunatly, i hope you find your way
my best regards
Click to expand...
Click to collapse
salamo3alikom.
Dude,you won't believe this !!
i just removed the back cover of my nexus 5 and was freaked out to find out it was actually an american model D820
thought the fact that in fastboot mode( bootloader) it says it's a D821 (H)
and guess what ! that (H) confused me and made me doubting it to not be a global (indian) version.
i guess i need to flash Some bands to get my LTE working properly.
thoughtless it's working but only when i'm near a 4G tower !
please help me.
i'd really appreciate that.
ZaKaRia OuH said:
salamo3alikom.
Dude,you won't believe this !!
i just removed the back cover of my nexus 5 and was freaked out to find out it was actually an american model D820
thought the fact that in fastboot mode( bootloader) it says it's a D821 (H)
and guess what ! that (H) confused me and made me doubting it to not be a global (indian) version.
i guess i need to flash Some bands to get my LTE working properly.
thoughtless it's working but only when i'm near a 4G tower !
please help me.
i'd really appreciate that.
Click to expand...
Click to collapse
wa 3alaykoum salam,
don't panic, do these steps :
1- go to "settings"
2- scroll down to "About Phone"
3- then "regulatory information"
4- take a screenshot and share it with me here to take a look
Chouiyekh said:
wa 3alaykoum salam,
don't panic, do these steps :
1- go to "settings"
2- scroll down to "About Phone"
3- then "regulatory information"
4- take a screenshot and share it with me here to take a look
Click to expand...
Click to collapse
i can't find it under setting/about phone.
since i installed A custom RoM AOSP nougat 7.0 and modified the build.prop to get google assistant working.
ZaKaRia OuH said:
i can't find it under setting/about phone.
since i installed A custom RoM AOSP nougat 7.0 and modified the build.prop to get google assistant working.
Click to expand...
Click to collapse
ahh, i dont know where to find it with Nougat, i have shown you on Marshmallow, what about return to 6.0.1 ? and go to the missing setting then take a screenshot and share it with me
Chouiyekh said:
ahh, i dont know where to find it with Nougat, i have shown you on Marshmallow, what about return to 6.0.1 ? and go to the missing setting then take a screenshot and share it with me
Click to expand...
Click to collapse
ok.
it's worth trying.
i'll restore the MM backup and share the screenshot asap.
please keep in touch.
Chouiyekh said:
ahh, i dont know where to find it with Nougat, i have shown you on Marshmallow, what about return to 6.0.1 ? and go to the missing setting then take a screenshot and share it with me
Click to expand...
Click to collapse
hey bro!
how are you doing ?
i hope you are fine[emoji4]
sorry for this long escape ( been so freaking busy with exams and preparation )
i really am confused with this device !
i thought it to be a nexus 5 model D820 because it can't catch 4G properly , then i removed the back cover and found it's A (D820) then went to regulatory information like you said found it's a (D821 )
went to fastboot mode found out it's a (D821 {H} )
i'm freaking confused.
i used an app called ''LTE Discovery'' to identify which bands my phone uses to connect to 4G when it catches it, i found band 3 and 7 !
do i still need to enable any additional bands like 7 or 20 to get 4G working properly ?
waiting to hearing from you soon !
sincerely,
Zackaria.
Sent from my Pixel XL using Tapatalk
ZaKaRia OuH said:
hey bro!
how are you doing ?
i hope you are fine[emoji4]
sorry for this long escape ( been so freaking busy with exams and preparation )
i really am confused with this device !
i thought it to be a nexus 5 model D820 because it can't catch 4G properly , then i removed the back cover and found it's A (D820) then went to regulatory information like you said found it's a (D821 )
went to fastboot mode found out it's a (D821 {H} )
i'm freaking confused.
i used an app called ''LTE Discovery'' to identify which bands my phone uses to connect to 4G when it catches it, i found band 3 and 7 !
do i still need to enable any additional bands like 7 or 20 to get 4G working properly ?
waiting to hearing from you soon !
sincerely,
Zackaria.
Sent from my Pixel XL using Tapatalk
Click to expand...
Click to collapse
what concerns us is what there is within the system and not back cover, so depending on the picture attached and what you said, the version D821 should run 4G, because the bands necessary are already exists. did you tried other SIM cards ( maroc telecom, meditel, inwi ) ? what did you get ? the same problem ?
Chouiyekh said:
what concerns us is what there is within the system and not back cover, so depending on the picture attached and what you said, the version D821 should run 4G, because the bands necessary are already exists. did you tried other SIM cards ( maroc telecom, meditel, inwi ) ? what did you get ? the same problem ?
Click to expand...
Click to collapse
i'm using ''maroc telecom'' thought i tried other Sim cards nothing has changed.
i tried inwi. it works well !
i don't know if i still have to activate any additional bands like band 8 and 20 ?
i talked to the guy that have posted the video in youtube and said that i need to activate band 20 if it isn't activated yet.
then talked to developer ''azlun'' who first succeeded to activate band 3 and 20 and said that if band 3 is already activated , but 4G still doesn't work properly , then i need to activate band 8 and 20 which is impossible due to hardware limitations.
what i really need to know what bands are used to connect to 4G in morocco ?
i already have band 3 and 7 activated.
if i have A D821 what others do i still have to activate ?
Sent from my Nexus 5 using Tapatalk
ZaKaRia OuH said:
i'm using ''maroc telecom'' thought i tried other Sim cards nothing has changed.
i tried inwi. it works well !
i don't know if i still have to activate any additional bands like band 8 and 20 ?
i talked to the guy that have posted the video in youtube and said that i need to activate band 20 if it isn't activated yet.
then talked to developer ''azlun'' who first succeeded to activate band 3 and 20 and said that if band 3 is already activated , but 4G still doesn't work properly , then i need to activate band 8 and 20 which is impossible due to hardware limitations.
what i really need to know what bands are used to connect to 4G in morocco ?
i already have band 3 and 7 activated.
if i have A D821 what others do i still have to activate ?
Sent from my Nexus 5 using Tapatalk
Click to expand...
Click to collapse
as i know in morocco, the telecom companies use 1800 Mhz and 800Mhz for LTE connection, which means bands 3 and 20, so the global version D821 has bands 3&20 already exists,and the two of them and you don't need to enable any bands! take a look here: D821 LTE bands : 1(2100), 3(1800), 5(850), 7(2600), 8(900), 20(800).
did you do this step ? calling service client of "maroc telecom" on 888 and tell them that the 4G doesn't work on your phone, and the will activate 4G connection for you, although you have a 4G SIM, you have to call service client of maroc telecom on 888 to ask them to activate LTE connection
Chouiyekh said:
as i know in morocco, the telecom companies use 1800 Mhz and 800Mhz for LTE connection, which means bands 3 and 20, so the global version D821 has bands 3&20 already exists,and the two of them and you don't need to enable any bands! take a look here: D821 LTE bands : 1(2100), 3(1800), 5(850), 7(2600), 8(900), 20(800).
did you do this step ? calling service client of "maroc telecom" on 888 and tell them that the 4G doesn't work on your phone, and the will activate 4G connection for you, although you have a 4G SIM, you have to call service client of maroc telecom on 888 to ask them to activate LTE connection
Click to expand...
Click to collapse
like i said,
my Sim card has already 4G network.
i already called them.
the problem has to do with my device.
now, you just said Nexus 5 Model D821 has band 3 and 20 enabled.
and i tell you i used an app called LTE discovery to find out which bands my phone uses to connect to 4G i found band 3 and sometimes band 7.
if it's the global version why it doesn't use band 20 ?
maybe i need to enable band 8 or 20.
imma call service client f maroc telecom tomorrow and ask them which bands they rely on.
then, imma be taking the next step.
i will really need your help bro.
and excuse my ignorance.
Sent from my Pixel XL using Tapatalk

[Q] Enabling Nexus 5 D820 LTE bands

Well, let me start from the beginning.
Im from Israel, and I bought a used Nexus 5, I've been warned that the phone doesn't get any reception and thought I could fix it somehow.
So while checking up the phone, I noticed its a D820 model Nexus, so I checked it up online and read its a US model and works only with their LTE bands, while there's a D821 model which works on rest of the world's LTE bands.
So while searching up online how to fix my problem so I will get those LTE bands worked on my D820, I've came across guide to enable some LTE bands (3 and 7 to be specific), and still trying that up..
But a thought came up my mind and I would like to know your opinion about it:
while checking up the 2 model specs, I noticed that both of them share the same specs and the only difference between them is their transceiver using other LTE bands, so theoretically speaking, if I place a D821 model motherboard in my D820 phone, I will get the reception and "transform" it to a D821 model?
so perhaps I could buy a used D821 which his owner broke his LCD screen or something, buy it cheaply and replace the 2 motherboards and my nexus will work as a D821 and get that reception is so desperately need?
By the way, if someone has a better walkthrough of how to get those LTE bands on the D820 and save me some cash, I will be honored to get a helpful PM.
I will be glad if someone with experience\knowledge will inlight my eyes.
thanks in advance!

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