SM-G9880 BRI (taiwan) vs TGY (HK) differences? Thinking about changing CSC

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cheetah2k

Senior Member
May 27, 2008
1,473
198
Brisbane
I have a SM-G9880 BRI (taiwan) version and using in Australia. I have all the 3G/4G options but I'm unable to select any 5G - even though the phone is a 5G phone. I know my carrier does not use 5G in my area at this time, so is it not showing any 5G options because 5G is unsupported? Is it SIM related or would it be because I have a BRI (taiwan) CSC? I know others in Australia with SM-G9880 TGY versions using 5G (on different carrier) and they have 5G options... Just confused whether the 5G options are disabled because of the SIM, or because of the CSC??? :confused:

If its CSC related, I might try Samkey to change the CSC to TGY...
 

west2cool

Senior Member
Dec 15, 2009
500
137
Durham
I have a SM-G9880 BRI (taiwan) version and using in Australia. I have all the 3G/4G options but I'm unable to select any 5G - even though the phone is a 5G phone. I know my carrier does not use 5G in my area at this time, so is it not showing any 5G options because 5G is unsupported? Is it SIM related or would it be because I have a BRI (taiwan) CSC? I know others in Australia with SM-G9880 TGY versions using 5G (on different carrier) and they have 5G options... Just confused whether the 5G options are disabled because of the SIM, or because of the CSC??? :confused:

If its CSC related, I might try Samkey to change the CSC to TGY...
5G has not been activated on BRI csc as there is no 5G in Taiwan yet. Its best changing to TGY however you will only get 5G using sim tray 2 (meaning you will not be able to use SD card at the moment).
 
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Mittesh

Member
Jul 9, 2018
17
3
Please help

I am also stuck with Taiwan version and have already signed up to a 5G plan in Australia thinking these were all 5g phones. Please suggest what I should be doing.

---------- Post added at 12:50 PM ---------- Previous post was at 12:44 PM ----------

Actually - never mind :D

I sorted it! That was easy!! And 4G now has a 4G+ and its even faster than before woooohoooo!! :highfive::highfive::highfive:

Please advise me what you did and how I can get over the 5G issue please

Thank you in advance
 

Mittesh

Member
Jul 9, 2018
17
3
Actually - never mind :D

I sorted it! That was easy!! And 4G now has a 4G+ and its even faster than before woooohoooo!! :highfive::highfive::highfive:
[MENTION=414798]
@cheetah2k

Is changing to hk firmware version using Samkey what you ended up doing? Was it easy.... I am not Tech savvy. I got this phone from eBay seller who was showing in Sydney but the phone ended up coming from Taiwan
 
Last edited:

cheetah2k

Senior Member
May 27, 2008
1,473
198
Brisbane
[MENTION=414798]

@cheetah2k

Is changing to hk firmware version using Samkey what you ended up doing? Was it easy.... I am not Tech savvy. I got this phone from eBay seller who was showing in Sydney but the phone ended up coming from Taiwan

This is the method I used (creds to user jabreel.torrin in the S10 forums. I did modify this though to suit the S20U) - You don't need to Odin flash the TGY firmware as its identical to the BRI - only CSC needs to change from BRI to TGY :good:

1. Buy 3 credits (can't buy 2) from this seller that on ebay that I used : https://www.ebay.com.au/itm/SamKey-Code-Reader-3-Credits-UNLOCK-Fast-Service/324110503100?ssPageName=STRK%3AMEBIDX%3AIT&_trksid=p2057872.m2749.l2648
2. After buying the Samkey credits you will be emailed the username and password for the Samkey App (you need this!)
3. Enable developer options on your phone: Settings > About phone > Software Information > Tap "build number" 8 times or until you see a pop-up message that says "Developer mode has been enabled".
4. Turn on USB debugging on your phone: Settings > Developer options > USB debugging > Allow USB Debugging > Tap "OK"
5. Go to www.samkey.org and download the Samsung USB drivers (if you havent installed any samsung software on the PC already) and the Samkey application
6. Install the drivers first, and then install Samkey application on your computer > Connect your phone to your computer with a usb cable > Login with the username/password you received from the ebay seller.
7. Click the "Read Info ADB" button to make sure your phone has been accepted by ADB
8. Insert the CSC code you want into the "Change CSC (Buyer)" field > With the BRI SM-G9880 you want to insert TGY (where is shows PHN in the pic below)
9. Click the "Change CSC" button > Confirm that you want to spend 1 or 2 credits (for me it was 1, but some report 2 used).
Let the application do it's work after which it will reboot and then you're good to go. :fingers-crossed:

For me it was seamless and worked so easy. Zero complaints. 5 min later I had a TGY phone - and I have reserve credits for the next Samsung phone I need to change Hope this helps guys!

https%3A%2F%2Flh3.googleusercontent.com%2FrLlCTwwk0jMVGKmBqe0Qmh2rVs_ZVk8FDXC6FCz91GGu3EjrMUoclkgc1bGVjOszLMbJD3sQvDxQARVtC8_howMRrCi83mCKw4-dNXS8Z4NYLZ1oU-LmV2uA7WMV-vI29Nk5khqETpA%3Dw2400
 
Last edited:

Mittesh

Member
Jul 9, 2018
17
3
Thank you

cheetah2k

OMG I can't thank you enough for the detailed breakdown. You just saved me alot of headache. I will try it tonight and let you know how I go.

Thank you again
 
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cheetah2k

Senior Member
May 27, 2008
1,473
198
Brisbane
cheetah2k

OMG I can't thank you enough for the detailed breakdown. You just saved me alot of headache. I will try it tonight and let you know how I go.

Thank you again

No probs mate, dont forget to click thanks on my tutorial if it goes to plan :)

Now all i need is to get a Telstra sim (as theres coverage in my area) and then can use the Band N78 5G :laugh:
 
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Mittesh

Member
Jul 9, 2018
17
3
No probs mate, dont forget to click thanks on my tutorial if it goes to plan :)

Now all i need is to get a Telstra sim (as theres coverage in my area) and then can use the Band N78 5G :laugh:

It's worked!!!! And it was super easy. Is it true that only Sim 2 works for 5G? I can see the 5G option on Sim 1 but haven't seen it connect. Not sure if it's cuz of no coverage or issue with phone Sim trays
 

pafc66

Senior Member
Oct 13, 2014
456
119
I did this but I wouldn't recommend changing to TGY firmware as a Telstra user. You don't get band 28 700mhz carrier aggregation. So no 4gx . For some reason I only get it with the Taiwan CSC but you miss out on 5g , to me that is less of a big deal than no 700mhz band 28 pairing with other bands for 4gx. In other words you'll get 4g+ less with Hong Kong firmware but you'll get 5g.
 

Mittesh

Member
Jul 9, 2018
17
3
I did this but I wouldn't recommend changing to TGY firmware as a Telstra user. You don't get band 28 700mhz carrier aggregation. So no 4gx . For some reason I only get it with the Taiwan CSC but you miss out on 5g , to me that is less of a big deal than no 700mhz band 28 pairing with other bands for 4gx. In other words you'll get 4g+ less with Hong Kong firmware but you'll get 5g.

If there a way to get both the options?
 

pafc66

Senior Member
Oct 13, 2014
456
119
If there a way to get both the options?
Not at the moment.
Best to stay on Taiwan firmware as they appear to have 700mhz band 28 carrier aggregation and wait till they add the 5g option when their local networks commence it later this year. I'm told it's this time when Samsung will push a update to enable 5g capabilities to Taiwan firmware.
 
Last edited:

Mittesh

Member
Jul 9, 2018
17
3
Not at the moment.
Best to stay on Taiwan firmware as they appear to have 700mhz band 28 carrier aggregation and wait till they add the 5g option when their networks commence it. I'm told it's this time when Samsung will push a update to enable 5g capabilities to Taiwan firmware.

Is there an option to go back to BRI Taiwan firmware once they enable 5G with the option of have both these bands at the stage?
 

Mittesh

Member
Jul 9, 2018
17
3
Yeah, you'll just have to download the Taiwan firmware when they get that update and change the CSC with samkey back to BRI

If you change your CSC, will your next firmware update me for that country. Like I have just changed from BRI to TGY... Will be next update automatically be the Hong Kong version of firmware? Or will it go back to BRI?
 

pafc66

Senior Member
Oct 13, 2014
456
119
If you change your CSC, will your next firmware update me for that country. Like I have just changed from BRI to TGY... Will be next update automatically be the Hong Kong version of firmware? Or will it go back to BRI?

You won't get a over the air update if you CSC doesn't match your firmware. You'll have to change the CSC to match your firmware. So change to BRI Taiwan CSC to receive the Taiwan update and vise versa if you have the Hong Kong firmware
 

Mittesh

Member
Jul 9, 2018
17
3
You won't get a over the air update if you CSC doesn't match your firmware. You'll have to change the CSC to match your firmware. So change to BRI Taiwan CSC to receive the Taiwan update and vise versa if you have the Hong Kong firmware

So my phone was BRI Taiwan version and all I did was buy the Samkey credits and change CSC to TGY to enable 5G. Does that mean no more updates for me until I change it back to Taiwan?
 

cheetah2k

Senior Member
May 27, 2008
1,473
198
Brisbane
I did this but I wouldn't recommend changing to TGY firmware as a Telstra user. You don't get band 28 700mhz carrier aggregation. So no 4gx . For some reason I only get it with the Taiwan CSC but you miss out on 5g , to me that is less of a big deal than no 700mhz band 28 pairing with other bands for 4gx. In other words you'll get 4g+ less with Hong Kong firmware but you'll get 5g.

Band 28 is available in the carrier band selection options FYI :good::good:
 

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  • 11
    [MENTION=414798]

    @cheetah2k

    Is changing to hk firmware version using Samkey what you ended up doing? Was it easy.... I am not Tech savvy. I got this phone from eBay seller who was showing in Sydney but the phone ended up coming from Taiwan

    This is the method I used (creds to user jabreel.torrin in the S10 forums. I did modify this though to suit the S20U) - You don't need to Odin flash the TGY firmware as its identical to the BRI - only CSC needs to change from BRI to TGY :good:

    1. Buy 3 credits (can't buy 2) from this seller that on ebay that I used : https://www.ebay.com.au/itm/SamKey-Code-Reader-3-Credits-UNLOCK-Fast-Service/324110503100?ssPageName=STRK%3AMEBIDX%3AIT&_trksid=p2057872.m2749.l2648
    2. After buying the Samkey credits you will be emailed the username and password for the Samkey App (you need this!)
    3. Enable developer options on your phone: Settings > About phone > Software Information > Tap "build number" 8 times or until you see a pop-up message that says "Developer mode has been enabled".
    4. Turn on USB debugging on your phone: Settings > Developer options > USB debugging > Allow USB Debugging > Tap "OK"
    5. Go to www.samkey.org and download the Samsung USB drivers (if you havent installed any samsung software on the PC already) and the Samkey application
    6. Install the drivers first, and then install Samkey application on your computer > Connect your phone to your computer with a usb cable > Login with the username/password you received from the ebay seller.
    7. Click the "Read Info ADB" button to make sure your phone has been accepted by ADB
    8. Insert the CSC code you want into the "Change CSC (Buyer)" field > With the BRI SM-G9880 you want to insert TGY (where is shows PHN in the pic below)
    9. Click the "Change CSC" button > Confirm that you want to spend 1 or 2 credits (for me it was 1, but some report 2 used).
    Let the application do it's work after which it will reboot and then you're good to go. :fingers-crossed:

    For me it was seamless and worked so easy. Zero complaints. 5 min later I had a TGY phone - and I have reserve credits for the next Samsung phone I need to change Hope this helps guys!

    https%3A%2F%2Flh3.googleusercontent.com%2FrLlCTwwk0jMVGKmBqe0Qmh2rVs_ZVk8FDXC6FCz91GGu3EjrMUoclkgc1bGVjOszLMbJD3sQvDxQARVtC8_howMRrCi83mCKw4-dNXS8Z4NYLZ1oU-LmV2uA7WMV-vI29Nk5khqETpA%3Dw2400
    1
    I have a SM-G9880 BRI (taiwan) version and using in Australia. I have all the 3G/4G options but I'm unable to select any 5G - even though the phone is a 5G phone. I know my carrier does not use 5G in my area at this time, so is it not showing any 5G options because 5G is unsupported? Is it SIM related or would it be because I have a BRI (taiwan) CSC? I know others in Australia with SM-G9880 TGY versions using 5G (on different carrier) and they have 5G options... Just confused whether the 5G options are disabled because of the SIM, or because of the CSC??? :confused:

    If its CSC related, I might try Samkey to change the CSC to TGY...
    5G has not been activated on BRI csc as there is no 5G in Taiwan yet. Its best changing to TGY however you will only get 5G using sim tray 2 (meaning you will not be able to use SD card at the moment).
    1
    Is there a fool proof method using Samkey?? Any help is appreciated :)

    Actually - never mind :D

    I sorted it! That was easy!! And 4G now has a 4G+ and its even faster than before woooohoooo!! :highfive::highfive::highfive:
    1
    Thank you

    cheetah2k

    OMG I can't thank you enough for the detailed breakdown. You just saved me alot of headache. I will try it tonight and let you know how I go.

    Thank you again
    1
    cheetah2k

    OMG I can't thank you enough for the detailed breakdown. You just saved me alot of headache. I will try it tonight and let you know how I go.

    Thank you again

    No probs mate, dont forget to click thanks on my tutorial if it goes to plan :)

    Now all i need is to get a Telstra sim (as theres coverage in my area) and then can use the Band N78 5G :laugh: