[RADIO/GUIDE/TWEAK]Radio JK1,JK8,KB1,KB2,KB3,KD1,KF1 & UCKD1,KE1,KF1 with HSPDA Tweak

window7 · Jun 9, 2011

[RADIO/GUIDE/TWEAK]Radio JK1,JK8,KB1,KB2,KB3,KD1,KF1 & UCKD1,KE1,KF1 with HSPDA Tweak

[RADIO/GUIDE] Radio JK1, JK8, KB1, KB2, KB3, KD1, KF1, UCKD1, UCKE1 and UCKF1

Radio Flash (Fastboot&ADB)
Radio Flash (Fastboot&ADB)

Radio for I9020a/I9020t/I9023
Radio JK1/Radio JK8
Radio KB1
Radio KB3
Radio KD1
Radio KF1
Radio KI1 <<= I9020a DO NOT FLASH!

Radio for I9020a ONLY
Radio UCKB2
Radio UCKD1
Radio UCKE1
Radio UCKF1
Radio UCKF1 (Version 2)
Radio UCKJ1 (LASTEST)

Radio for Korea Carrier ONLY
Radio KC1

Radio Patch for I9020T ONLY
Radio KD1 =>> KF1

For those who has IMEI problems, please CLICK HERE!!

What to know before you start flashing radio?

1. Back up your EFS folder. Click here for the method of backup.
2. Check your phone MODEL (I9020A, I9020T & I9023).
3. Flash the CORRECT RADIO according to your phone model.
4. OPTIONAL After download the radio file, check your downloaded file md5 sum. Click here for the md5 sum
5. After flashing, check your radio baseband at Setting > About Phone > Baseband.

Want to have higher 3G speed connection? Use HSDPA Tweak

Lost your 3G Connection? Here's the solution:How to retrieve 3G connection?

Got question to ask? Read FAQ first

Want to Back up your EFS folder? Click here for the method of backup.

Method of Flashing Radio

Method 1 (ClockWorkMod Recovery):

1, Reboot into recovery,
2, Select "select zip from SD card"
3, Locate where your radio file is
4, Select it and "yes"
5, Wait for it to reboot and you're done!

Method 2 (FASTBOOT + ADB):
(FOR WINDOWS Operation System only, NOT FOR MAC OS)

Part 1
1, Download Radio Flash (Fastboot&ADB).zip
2, Extract the folder to Desktop.
3, Open the extracted flash folder.
Part 2
1, Download the radio.zip file you would like to flash from the link above/attachment below.
2, Extract it to Desktop.
3, Copy the "radio.img" file from the folder and paste it into the Radio Flash Folder you had extracted in PART 1.
Part 3
1, Connect your Nexus S to computer (USB Debugging turn on, SD card mount turn off)
2, Double left click the "START HERE.bat" and command prompt window will open/run.
3, Type: "adb reboot bootloader". (The adb reboot bootloader will take the device directly to fastboot) OR boot the phone to bootloader by pressing the volume up key with power key at the same time.
4, Once your phone has rebooted in to bootloader screen, type "fastboot devices" to ensure your device is detected.
5, After confirm your device is detected with serial number, type "fastboot flash radio radio.img".
6, Once its done, type "fastboot reboot".
7, You're good to go

Method 3 (ROM MANAGER):

(Not recommended , but still if method 2 and 3 cant work, use this AT YOUR OWN RISK)

1, Install Rom Manager from Market.
2, Open Rom Manager and select "Install rom from SD".
3, Locate the file where you put the Radio file downloaded.
4, Flash it with Dalvik Cache wipe (Data and Cache wipe NOT required)
5, Enjoy it

HSDPA Tweak (Higher/Faster Data Connection Speed)

Method 1 (Via Root Explorer):

Code:

[SIZE="3"]1, Open "Root Explorer" and mount R/W.
2, Go to "system" and you will find there is a file name "build.prop".
3, Right click (By holding at the file) and there is menu pop out.
4, Scroll down and select edit in Text Editor.
5, Type in those few line of words below into the last line of the text.

ro.ril.hsxpa=2
ro.ril.gprsclass=12
ro.ril.hsdpa.category=16
ro.ril.hsupa.category=8

6, Save the file and reboot your phone TWICE.[/SIZE]

Method 2 (Via ADB and USB debugging):

Code:

[SIZE="3"]Part 1
1, Download the Radio Flash (Fastboot&ADB).zip from above.
2, Extract the folder to Desktop.
3, Open the extracted flash folder.

Part 2
1, Connect your Nexus S to computer (USB Debugging turn on, SD card mount turn off)
2, Double left click the "START HERE.bat" and command prompt window will open/run.
3, Type: "adb pull /system/build.prop" and DO NOT close the command prompt.
4, In that folder, you will now see a file name "build.prop"
5, Open with notepad/text editor and add in these lined of code. (Copy and paste)

ro.ril.hsxpa=2
ro.ril.gprsclass=12
ro.ril.hsdpa.category=16
ro.ril.hsupa.category=8

6, Then save the file. 
7, Type in "adb remount" in the command prompt.
8, Type in "adb push build.prop /system/build.prop" in the command prompt.
9, Reboot your phone TWICE and it should be good to go.[/SIZE]

For those who want to know what those lines means, click here

FAQ

Click the word "FAQ" above to go to FAQ section.

Disclaimer: I assume you will have the knowledge regarding Rado (Baseband) to flash this radio update, I shall not be liable for anything that happen to your phone, including the procedure and method.
Everything was tested on my phone, not every phone is the same

Note: Extras credit to steve.garon, soniko, iamxeph , sheek360, BrainMaster and others who provided me the radio and answer

liorry · Jun 9, 2011

Thanks...
Still can't figure out why I get only 3G-UMTS (instead of HSDPA) with the KD1 baseband.
KB3 works fine.

window7 · Jun 9, 2011

Radio MD5 Sum

How to verify your MD5 sum?

1. Download this MD5 Sum Checker
2. Extract it to desktop.
3. Open the md5.exe
4. Copy the md5 sum at below and go back to the md5.exe
5. Click "browse" and select your downloaded file.
6. Check complete

Legend:
The 1st MD5 sum is for the ZIP file of the radio.
The 2nd MD5 sum below the word "RADIO" is for the radio.img inside the zip file.

XXJK8-radio-nexuss-unsigned
62C574774252E7FDA93845E4C61AD704

Radio.img
642E353E6E180FB0C48491FECD80079B

XXJK8-V1-radio-nexuss-unsigned
869016540339302EE646ECBA81080637

Radio.img
642E353E6E180FB0C48491FECD80079B

XXKB1-GRI40-radio-nexuss-unsigned
4805C255F10EEF8B1BD54AA2D27BC30E

Radio.img
942C7F6339E6ADA5A58CF656C3F1FD4A

Radio Nexus S [XXKB3]
4E9C9CF4D6470BE800E00F8508B9C175

Radio.img
EBC55CCF390A9C310F4F3E8B6F178E59

XXKD1-GRJ22-radio-nexuss-unsigned
57659F04148EBFA849EF523544F2A3DD

Radio.img
9E136A81C2D67648BB7E6642A7C805D5

XXKF1-radio-nexuss-signed
365270BE137EED7DCA351386A8CDDEB9

Radio.img
9E0E2086FBC5ADCFF88E6CA0BFE2D0B8

UCKD1-GRJ22-radio-nexuss-unsigned-sgaron
6BCA6A970E72424D55546CA484DF431A

Radio.img
2106935507A3C874D0EEFC5DF6AB60BF

UCKE1-GRJ22-radio-nexuss-unsigned
E37672AD207DFA0A565EAA8C12CA5402

Radio.img
705AC305D5A0131D26562A2065485B87

UCKF1-radio-nexuss-unsigned
B8E70F9245CF01DB10BF13870D1E341B

Radio.img
07CD2DD58418877BEA268F877931F886

XXKB2-radio-nexuss-unsigned
7CA2DC12E00D592099C123FF057BE995

Radio.img
4E926FDF96A2350C85604B1A00009DC5

XXKC1-radio-nexuss-unsigned
3D6745E0F5E55443EC1CB7CF01D99A36

Radio.img
4BCC117E9248E39FB2A0D800D072CC7C

Radio Attachment 2

MistaJae · Jun 9, 2011

I'm currently using KB3. I get good network at home but poor at work. KD1 seemed to give me the opposite!

Is one of these radios generally better for the UK?

window7 · Jun 9, 2011

How to retrieve 3G Data Connection

Method 1:

Code:

1. Go to Dialer. Dial *#*#4636#*#*
2. Go to Phone information. Choose the preferred network to 
    "GSM Auto PRL" or "CDMA Auto PRL" or whatever you have.
3. Scroll down, deactivate and activate Phone Radio.
4. Press Menu button.
5. Select Phone frequency, then choose your country.
6. In the previous menu push the Home button to go back to Homescreen.
7. Reboot.
[I](By Brainmaster)[/I]

Method 2:
(Advise: Before you play with it, please back up it. Click here for the method of backup.)

Code:

1. Use "Root Explorer" and navigate to [B]/efs[/B] directory
2. Mount "R/W"
3. Cut these three files [B]nv_data.bin[/B] , [B]nv_data.bin.md5[/B] and [B]nv.log[/B]
4. Paste it at the ROOT of the SD Card.
5. Reboot your phone and you will have your 3G connection back.
[I](By alexwbaule)[/I]
[/QUOTE][/SIZE]

pnnorth · Jun 9, 2011

window7 said:
Generally, for Australia, KD1 is better
Not sure for UK
Anyone from UK can give me some feedback?

I personally find kb3 slightly better in the uk, but not by much. Both radios offer good reception on Vodafone.

Sent from my Nexus S using XDA App

conman13 · Jun 9, 2011

KB3 works on i9020a! Just flashed it last night.

dario3040 · Jun 9, 2011

I would not recommend flashing radio's with Rom Manager.
Not flashing it properly might cause some serious problems.

antiochasylum · Jun 9, 2011

KD1 only allowed me a UTMS connection on my 9020A, just flashed this KB3 and hack to HSDPA

. Much faster

Thank you.

sent from my next level bacon apparatus

Dario777 · Jun 9, 2011

Anyone in Spain tried it??
Impressions?

brainmaster · Jun 9, 2011

antiochasylum said:
KD1 only allowed me a UTMS connection on my 9020A, just flashed this KB3 and hack to HSDPA . Much faster

Thank you.

sent from my next level bacon apparatus

What hack for HSDPA?

Rosaski · Jun 10, 2011

I am using the KD1 radio on a I 9020t in the USA.

Sent from my Google Nexus S using XDA App

de-evolution · Jun 10, 2011

Im using KD1 in USA as well but would KB3 be better?

window7 · Jun 10, 2011

HSDPA Tweak (Higher/Faster Data Connection Speed)

Method 1 (Via Root Explorer):

Code:

[SIZE="3"]1, Open "Root Explorer" and mount R/W.
2, Go to "system" and you will find there is a file name "build.prop".
3, Right click (By holding at the file) and there is menu pop out.
4, Scroll down and select edit in Text Editor.
5, Type in those few line of words below into the last line of the text.

ro.ril.hsxpa=2
ro.ril.gprsclass=12
ro.ril.hsdpa.category=16
ro.ril.hsupa.category=8

6, Save the file and reboot your phone TWICE.[/SIZE]

Method 2 (Via ADB and USB debugging):

Code:

[SIZE="3"]Part 1
1, Download the Radio Flash (Fastboot&ADB).zip from above.
2, Extract the folder to Desktop.
3, Open the extracted flash folder.

Part 2
1, Connect your Nexus S to computer (USB Debugging turn on, SD card mount turn off)
2, Double left click the "START HERE.bat" and command prompt window will open/run.
3, Type: "adb pull /system/build.prop" and DO NOT close the command prompt.
4, In that folder, you will now see a file name "build.prop"
5, Open with notepad/text editor and add in these lined of code. (Copy and paste)

ro.ril.hsxpa=2
ro.ril.gprsclass=12
ro.ril.hsdpa.category=16
ro.ril.hsupa.category=8

6, Then save the file. 
7, Type in "adb remount" in the command prompt.
8, Type in "adb push build.prop /system/build.prop" in the command prompt.
9, Reboot your phone TWICE and it should be good to go.[/SIZE]

For those who want to know what those lines means, click here

Ok_Kaleidoscope5109 · Jun 10, 2011

I used an earlier posted KD1 on my 9020a and its identical to KB3 to me. HSDPA all the way and the speedtests are about the same.

Reception flat out sucks on the NS though compared to other phones.

liorry · Jun 10, 2011

window7 said:
As to your question,
It is actually using HSDPA when it is able as sometimes it just wont show the H icon This is one of the glitch.

You tested both radio on your I9020A or I9020T?

No no, I have the H icon.. using CM7. so it's not that glitch... I'm checking on the About->Status settings anyway.
Tested both. KB3 is working great. KD1 - no HSDPA

adewey234 · Jun 12, 2011

liorry said:
No no, I have the H icon.. using CM7. so it's not that glitch... I'm checking on the About->Status settings anyway.
Tested both. KB3 is working great. KD1 - no HSDPA

I've noticed this as well. I was using KD1 for like a month or so, and then I saw this thread and noticed that I was getting HSDPA a lot more..I would on occasion see it on KD1 but not too often, even when I had damn good signal. I am happy using KB3 and the speeds are pretty damn good.

entropy1980 · Jun 12, 2011

When I try and apply the KB3 to my 9020A I get a "Signature verification Failed" What am I missing?

Beako · Jun 12, 2011

Is KB3 the default radio that my stock Nexus S has?

mr_raider · Jun 12, 2011

Beako said:
Is KB3 the default radio that my stock Nexus S has?

The Robelus versions come with kb2.

[RADIO/GUIDE/TWEAK]Radio JK1,JK8,KB1,KB2,KB3,KD1,KF1 & UCKD1,KE1,KF1 with HSPDA Tweak

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