Root Froyo on At&t Nexus one, lots of confussion

[Tarasasaurus]

Hello everybody! I am another iPhone switcher. Just got my nexus one yesterday and really like it, but i can see how an average users would rather get an iphone. Android is much more of a real smartphone and you need to know what you are doing to get the best out of it.

I do have a question tho. I really want to install Froyo on it. For the past week or two i have been prepping myself to do it. Searching online for How-tos and such. There are a lot of confusing articles on the interwebz.

So i am going to straight ask noob questions to make sure i understand this.

1. Can I install froyo on At&t Nexus One ?
2. Does it require Rooting?
3. What is the best how to for rooting Nexus One?
4. Can you use Mac to root Nexus One?
5. More of a carrier question: Can i pop the sim back into my iPhone and still have everything work? Or its like with the 2g iphone where after putting the sim back into 3gs I had to call At&t and have them change imei for my 3gs?

Thanks

 

[cstavaru]

1. Yes
2. No
3. Nexus One gives you plenty of freedom even without rooting. No need to root it just now...wait and see what you can do with it unrooted first...you will be really impressed coming off an iPhone

 

[Talderon]

1. Can I install froyo on At&t Nexus One ?
2. Does it require Rooting?
3. What is the best how to for rooting Nexus One?
4. Can you use Mac to root Nexus One?
5. More of a carrier question: Can i pop the sim back into my iPhone and still have everything work? Or its like with the 2g iphone where after putting the sim back into 3gs I had to call At&t and have them change imei for my 3gs?

Thanks

1. Yes, but you do need to unlock the boot loader to do so because you will have to install ERE27 first.
2. Rooting and unlocking the boot loader is different. Rooting is enabling root access on the OS, it's NOT the same as just unlocking the boot loader to install custom ROM's.
3. XDA Developers has great guides. Easy to find.
4. Yes, install the official Android SDK and see how to set it up (I don't have a MAC, so no help here, sorry)
5. No idea.

Just found this guide...

http://oepete.com/n1update.htm

 

[Tarasasaurus]

1. Yes, but you do need to unlock the boot loader to do so because you will have to install ERE27 first.
2. Rooting and unlocking the boot loader is different. Rooting is enabling root access on the OS, it's NOT the same as just unlocking the boot loader to install custom ROM's.
3. XDA Developers has great guides. Easy to find.
4. Yes, install the official Android SDK and see how to set it up (I don't have a MAC, so no help here, sorry)
5. No idea.

Just found this guide...

oepete.com

Great thanks! Thats whats I thought about the Boot Loader and ERE27. So its not as easy as it is on t-mobile Nexus One, right?

 

[Tarasasaurus]

Any possibility i will brick the phone doing this?

 

[Talderon]

Great thanks! Thats whats I thought about the Boot Loader and ERE27. So its not as easy as it is on t-mobile Nexus One, right?

Because the "ROM" for 2.2 upgrades from ERE27 to FRF50, you really have no choice but to unlock the boot loader. Few extra steps, but overall, not that hard really...

Any possibility i will brick the phone doing this?

There is ALWAYS a CHANCE you can brick your phone...

BUT

If you follow the instructions and be careful, it's not that easy to brick it...

The only thing I would suggest is that when you are flashing the ROM, no matter how long it takes, LEAVE YOUR PHONE ALONE!!

There is one point in the flashing where you get an icon on the screen where it looks like a Box with an arrow coming out of it pointing to an Android (looks like it's unpacking the android)... This can take 5-10 minutes to complete this action, so do NOT pull your battery, or mess with the buttons on the phone, just let it go and finish, or you can possibly brick your phone at this stage.

Also, it is good practice to have as much battery charge as you can (I would never flash below 50% battery) or hooked up to charging (USB or Wall) while flashing.

Common sense...

 

[Tarasasaurus]

Because the "ROM" for 2.2 upgrades from ERE27 to FRF50, you really have no choice but to unlock the boot loader. Few extra steps, but overall, not that hard really...



There is ALWAYS a CHANCE you can brick your phone...

BUT

If you follow the instructions and be careful, it's not that easy to brick it...

The only thing I would suggest is that when you are flashing the ROM, no matter how long it takes, LEAVE YOUR PHONE ALONE!!

There is one point in the flashing where you get an icon on the screen where it looks like a Box with an arrow coming out of it pointing to an Android (looks like it's unpacking the android)... This can take 5-10 minutes to complete this action, so do NOT pull your battery, or mess with the buttons on the phone, just let it go and finish, or you can possibly brick your phone at this stage.

Also, it is good practice to have as much battery charge as you can (I would never flash below 50% battery) or hooked up to charging (USB or Wall) while flashing.

Common sense...

For sure common sense helps. I have jailbroken my iphone with all the tools available including quickpwn and other easier to use tools. So i am familiar with how this type of stuff works.

It does look like rooting and unlocking boot loaded on nexus one is a bit more involved compared to the iphone.

Anyway i can back up whats on my Nexus one and then load it up when i upgrade to 2.2 ?

 

[RogerPodacter]

i just rooted my ATT nexus one this weekend, after using it for 3 months. it took a little reading (actually a lot of reading) but the process is very easy and relatively quick.

yes the ATT nexus can be upgraded to froyo, after you root, but there is a catch. the new froyo includes a new radio update, and this radio update IS compatible with the ATT nexus. if you do NOT want to update your radio with froyo, then video will not work correct in froyo. i suggest updating with the radio.

however once you root, you can bounce between ROMs with ease. and the new froyo radio gives problems if you go back to 2.1 ROMs like cyanogen, or even stock 2.1 ROM.

so this means that you can either keep froyo with the new radio, or flash to the old radio everytime you want to go back to a 2.1 ROM. its not hard flashing the radio, but there is always a risk dealing with new radio and bricking your phone.

plus some people say the new radio is not as good as the old radio, while others seem to say the new radio is so much better, all using the ATT version.

i havent tried froyo yet. i'm about to try it very soon.

 

[Tarasasaurus]

i just rooted my ATT nexus one this weekend, after using it for 3 months. it took a little reading (actually a lot of reading) but the process is very easy and relatively quick.

yes the ATT nexus can be upgraded to froyo, after you root, but there is a catch. the new froyo includes a new radio update, and this radio update IS compatible with the ATT nexus. if you do NOT want to update your radio with froyo, then video will not work correct in froyo. i suggest updating with the radio.

however once you root, you can bounce between ROMs with ease. and the new froyo radio gives problems if you go back to 2.1 ROMs like cyanogen, or even stock 2.1 ROM.

so this means that you can either keep froyo with the new radio, or flash to the old radio everytime you want to go back to a 2.1 ROM. its not hard flashing the radio, but there is always a risk dealing with new radio and bricking your phone.

plus some people say the new radio is not as good as the old radio, while others seem to say the new radio is so much better, all using the ATT version.

i havent tried froyo yet. i'm about to try it very soon.

I see. What is radio is it like baseband on iphone?

So its still better to root before manually installing froyo? I have read like 5 different how tos and watched a ton of videos. Any How Tos in particular that you would recommend?

 

[Talderon]

There is a misconception here...

Unlocking your Boot Loader is NOT Rooting your Nexus One.

Unlocking your Boot Loader allows you to flash custom ROM's on your N1.

The ROM is what is rooted. Rooting gives you "Root" access to the underlying OS. Meaning you get full admin or super user rights.

Unlocking your Boot Loader means you can flash a rooted ROM, or a Non-Rooted ROM. So Rooting will actually come from your ROM, not just unlocking your Boot Loader.

 

[Tarasasaurus]

There is a misconception here...

Unlocking your Boot Loader is NOT Rooting your Nexus One.

Unlocking your Boot Loader allows you to flash custom ROM's on your N1.

The ROM is what is rooted. Rooting gives you "Root" access to the underlying OS. Meaning you get full admin or super user rights.

Unlocking your Boot Loader means you can flash a rooted ROM, or a Non-Rooted ROM. So Rooting will actually come from your ROM, not just unlocking your Boot Loader.

yeah, i figured that.

I guess my question is to properly flash froyo i need to update the Radio, right? But if i want to go back to 2.1 i will need to update the radio back and that will require rooting, right?

But to just flash froyo i only need to unlock the bootloader, correct?

 

[ragingyeti]

I updated my att n1 to froyo and had everything working using these exact steps that I posted here:
http://androidforums.com/nexus-one/83559-epe54b-froyo.html#post792205
I did find that doing this caused my 3G speed to drop from 2-3 mbps to about .5, just a heads up.

 

[Tarasasaurus]

So can I go back to stock rom if I upgrade to froyo?

 

[CuE_32]

OK I have a Rogers/ATT Nexus One and before I make all the changes to get Froyo, I have a few confirmation from all mainly surrounding when the OTA arrives.
When the OTA comes,
1) Will I receive it, and if I do, can I just run the update?
2) If I can just run the update, will it change back from ERE27 back to EPE54B? Will it be back to normal? (Unrooted, back to Stock as if I didn't make the changes)
3) If I can't just run the update, what will I need to do?

Please let me know ASAP as I am itching to get Froyo.