Related
I have tested the rooting of the G1 with the CRC1 update (with my boss`s phone ) He accidently got the update and installed it yesterday on his non-rooted G1 and while we were at work tonight we flashed it back down to the RC29 with NO troubles at all ... only thing left to do was download the spl and the recovery image and type telnetd, download telnet connect to local host, and run some script... which all should work just fine since it did let us downgrade. I havent seen anyone here or on google that has tried that yet so I wanted to let everyone know it will let you downgrade to the lower version.
Now if you have a rooted phone and install the update .. you will more than likely loose the root .... but you should be able to get root back by re-rooting the phone and going with a non CRC version until a modified image comes out.
OK we finished the rooting today and it flashed with the new ROM and everything. It now is on the JF1.51MOD with the updated radio.
Yup, read this post:
http://forum.xda-developers.com/showthread.php?t=538536
and this post:
http://forum.xda-developers.com/showthread.php?t=538456
/Close
andonnguyen said:
yup, read this post:
http://forum.xda-developers.com/showthread.php?t=538536
and this post:
http://forum.xda-developers.com/showthread.php?t=538456
/close
Click to expand...
Click to collapse
NEITHER of these 2 threads say anything about anyone testing or confirming that you can downgrade FROM CRC1 and get root again.... the JF thread is saying pretty much dont install it and if you do it wont update anyhow. The other thread was cyogen making an altered CRC1 version that has been patched for updating.
Still no threads like this one that I found
/OPEN
Strapt said:
until a modified image comes out.
Click to expand...
Click to collapse
Which JF will come out with, as posted in my previous post, but good to know that its still downgradable (is that even a word?) to RC29. This thread should be posted in the general Dream section BTW, as its not pertaining to any development topics.
/CLOSE
LULZ.
andonnguyen said:
Which JF will come out with, as posted in my previous post, but good to know that its still downgradable (is that even a word?) to RC29.
Click to expand...
Click to collapse
ya which will be nice when he does come out with it so people can run the phone with that version .. but this inst about who is going to be comming out with a modified image to KEEP root access ...This is to rest peoples fears about NOT being able to re-root the phone if they accept the CRC1 update or not able to root it in the first place... which no one has seemed to have tried/confirmed until now. and .. downgradeable a word?..well ... it is now!
Strapt said:
ya which will be nice when he does come out with it so people can run the phone with that version .. but this inst about who is going to be comming out with a modified image to KEEP root access ...This is to rest peoples fears about NOT being able to re-root the phone if they accept the CRC1 update or not able to root it in the first place... which no one has seemed to have tried/confirmed until now. and .. downgradeable a word?..well ... it is now!
Click to expand...
Click to collapse
So yeah I'm just upping my post count now since I'm bored. lol. Mmm, family guy is funny.
Strange...as far as I know, I have been able to downgrade to RC29 from all official releases, RC30, RC33 and 1.5, since I have had 4 separate G1's since initial release (I'm extremely clumsy and rough with my phones sometime - usually halfway through a bottle of scotch).
Hmm.
Nevermind - apparently alcohol also affects my ability to read thoroughly.
so,here's what I did, I accepted the cr1 update on my stock 1.5 stock g1,
then, I downgraded to RC29 with no problems at all, I also followed the instructions and rooted my phone ( apparently ), after that, I tried to flash a few different roms, but none would load, my g1 will always freeze at the G1 screen, until I install back the stock rom again,
am I doing something wrong?
'cuz am not that new at this, and I feel stupid.
There was never any question of it.
The only firmware known to be easily rooted is RC29.
Downgrading to RC29 is completely independent of what firmware version is actually ON the device -- it is strictly related to SPL version. Since CRC1 is an OS update and NOT an SPL update, it can't possibly have any affect on whether or not you can downgrade to RC29, hence it definitely CAN still be rooted when CRC1 is installed.
funny...
i was at a friends house last night and he wanted me to root his g1. i was there for hours trying to figure out why i couldnt get the bootloader screen to switch to grey. I downloaded DREAIMG.nbh from several sources with several different sdcards. i even have a dedicated card i named ROOTER with all the neccessary files and updates but couldnt get nothing cooking.
el_plebillo said:
so,here's what I did, I accepted the cr1 update on my stock 1.5 stock g1,
then, I downgraded to RC29 with no problems at all, I also followed the instructions and rooted my phone ( apparently ), after that, I tried to flash a few different roms, but none would load, my g1 will always freeze at the G1 screen, until I install back the stock rom again,
am I doing something wrong?
'cuz am not that new at this, and I feel stupid.
Click to expand...
Click to collapse
what ROM are you going to?? if its Hero you HAVE to have the latest spl. If it has autoappsstosd you need to have your sdcrd partitioned right (fat32 first and then ext2) I recommend using the sdsplit method.
oneG said:
funny...
i was at a friends house last night and he wanted me to root his g1. i was there for hours trying to figure out why i couldnt get the bootloader screen to switch to grey. I downloaded DREAIMG.nbh from several sources with several different sdcards. i even have a dedicated card i named ROOTER with all the neccessary files and updates but couldnt get nothing cooking.
Click to expand...
Click to collapse
hmm intersting .. the only time I have seen that is if someone was placing the entire.zip file on the sd card instead of just the DREAMING.nhb file on there. I would just reformat the card to fat32 and place that file only on it again and then try it again and see if anything goes different. Dont know if it makes a difference but i got the DREAMING.nhb off the how to root the g1
Strapt said:
I would just reformat the card to fat32 and place that file only on it again and then try it again and see if anything goes different. Dont know if it makes a difference but i got the DREAMING.nhb off the how to root the g1
Click to expand...
Click to collapse
Yeah that was my initial reaction but to no avail. Like i said earlier, i tried dl the img. from several sources.
Anyway he's not that into his G1 as much as we here are and like my g/f, despite the many features its capable of, only uses it for calls and text. He's excited about tethering tho but kinda paranoid with all that could go wrong like bricking and all that, so yesterday he was a little reluctant for a second attempt due to the day before's problematic flash. I did happen to get his phone to start ringing again without the call going stragiht to voicemail and the lock screen works now, which was the real reason i was over there in the first place.
But as far as root and CRC1 go, i might sneek my g/f's G1 away so i can test there
oneG said:
Yeah that was my initial reaction but to no avail. Like i said earlier, i tried dl the img. from several sources.
Anyway he's not that into his G1 as much as we here are and like my g/f, despite the many features its capable of, only uses it for calls and text. He's excited about tethering tho but kinda paranoid with all that could go wrong like bricking and all that, so yesterday he was a little reluctant for a second attempt due to the day before's problematic flash. I did happen to get his phone to start ringing again without the call going stragiht to voicemail and the lock screen works now, which was the real reason i was over there in the first place.
But as far as root and CRC1 go, i might sneek my g/f's G1 away so i can test there
Click to expand...
Click to collapse
lol ya you should take her and try ... I finished rooting my boss`s CRC1 yesterday. after flashing the .nhb file we added the JF1.51MOD thats found on lucids page .. mainly because it has the radio and the rom in one update. But anyhow he has a rooted G1 straight from CRC1 ... wonder what radio you guys had on that phone and if it needed to be updated before going to the ROM you chose
I needed this!
I needed to root a friends phone. He just bought it, and it had RC29. By the time he got to me, it was CRC1. Regardless, I found this post which showed it worked.
I flashed RC29, Then rooted it. Flashed latest radio, CM 1.4 Recovery, then JF1.50, and finally CM 3.9.7.
It worked beautifully! Thanks for the confirmation post!
SoTacMatt said:
I needed to root a friends phone. He just bought it, and it had RC29. By the time he got to me, it was CRC1. Regardless, I found this post which showed it worked.
I flashed RC29, Then rooted it. Flashed latest radio, CM 1.4 Recovery, then JF1.50, and finally CM 3.9.7.
It worked beautifully! Thanks for the confirmation post!
Click to expand...
Click to collapse
You are very welcome!! Thats why I posted it to let people know that they werent screwed when/if they got the Crc1 update. Glad that it went well for you!
I just got a g1 (and use linux since 1999), and LOVE this phone...sofar.
i would want to root it, and plan to.
i have the 1.5 firmware, and crc1 and am planning this on saturday.
is there a way to take screen shots of it all ? (from the phone)
any tips/ links etc is appreciated.
"run linux, stay happy".
Bellevue Washington
doing the root in Kirkland
Pizza or soda (or beer) on me.
I have the Samsung Fascinate and I recently rooted it to get all the wonderful benefits that come with rooting.
I downloaded the leaked Froyo update, renamed it "update.zip" and put it in my sd card folder in order to update.
I then turned off my phone and pushed the power button plus the volume up and down until I got to the boot screen. I kept getting an error saying it couldn't verify the package (or something along those lines) and then it sent me to a screen with the triangle, exclamation point and the little droid guy.
I also tried using Rom Manager but the same thing happened.
I hear you are supposed to use Odin, but I am running on a mac and Odin is a windows application.
Please help me, I'm desperate to get the Froyo update on my device.
Thanks in advance.
Yikes u didn't do any research at all did you?? U can't use Odin on Mac....and u need it. Do u even have cwm? Probably not since u didn't Odin. U need to Odin cwm...Make a backup...Odin eb01 modem...flash rom. Update.zip is not correct...u don't rename .zip roms...you flash them via cwm. Not trying to bash u....but you are way off...and getting help via forums will b tough.
You need to go to irc and be polite and find some help there. Someone should hopefully be able to help you...I will b on eventually.
sent from my vanilla voodoo fascinate
I did my research but if I'm not literate with how or what a CWM is or how to use it, that doesn't mean I didn't do my research.
But are you telling me I can't install the update without a windows computer?
I have access to one where I am but I would rather know all the steps before I get on someone else's computer and start trying to figure it out there.
I looked through all 50 or so pages of the Froyo leaked thread and I saw a few people who understood all these things, but if I don't understand and there isn't a tutorial it makes it harder for me to accomplish my goal.
Can your phone boot up?
Someone varify my directions.
This might work if u can get into download mode. U need to find all the links urself since I'm on tapatalk.
First off...find a pc. Without one you can't do anything. Put ur eb01 rom on sdcard for later. Instal the 32 bit or 64 bit Samsung drivers depending on ur pc. For many..its the 32 bit. Then get Odin. U will need to find a link to cwm...if I'm not mistaking there is one on like the 2nd or 3rd page in android development section...will say updated cwmq for dj05 or dl09 or something like that. Find directions of how to use Odin...but simply place the cwm.tar file in the pda section on Odin...then click start. When that's done...u should make a backup...however...u may not b able to boot up because of what u have already done. U may try odining the eb01 modem. Once u have that done...hold up down and power to get I to your new updated cwm. From there click instal zip from sdcard...and flash ur eb01 rom of choice....wipe wipe wipe...reboot system.
Again...this may not work since I'm not possitive what u already did to ur phone by not doing your research. Like I already said...be polite and head over to irc. .someone will have more time than I do to fix ur phone.
sent from my vanilla voodoo fascinate
You obviously didn't research. There is an eb01 walkthrough on fascinate development section...impossible to miss. If ur incompetent at following step by step directions u should not be Modding your phone. Seek help and knowledge before doing anything...u don't want a 600 dollar paper clip do you?
sent from my vanilla voodoo fascinate
kyfredrickson said:
You obviously didn't research. There is an eb01 walkthrough on fascinate development section...impossible to miss. If ur incompetent at following step by step directions u should not be Modding your phone. Seek help and knowledge before doing anything...u don't want a 600 dollar paper clip do you?
sent from my vanilla voodoo fascinate
Click to expand...
Click to collapse
How would you use it as a paper clip? A paper weight I see, but not a paper clip?!?!
TheFake said:
I did my research but if I'm not literate with how or what a CWM is or how to use it, that doesn't mean I didn't do my research.
But are you telling me I can't install the update without a windows computer?
I have access to one where I am but I would rather know all the steps before I get on someone else's computer and start trying to figure it out there.
I looked through all 50 or so pages of the Froyo leaked thread and I saw a few people who understood all these things, but if I don't understand and there isn't a tutorial it makes it harder for me to accomplish my goal.
Click to expand...
Click to collapse
Not to be a ****...but the first thing you learn when reading is how to flash the modem using ODIN...so, yeah....
Since you've f'd up the phone already. Download the restore to stock files and odin. Go to someone with a PC and follow the restore directions to the T. DO NOT FALTER.
kyfredrickson said:
You obviously didn't research. There is an eb01 walkthrough on fascinate development section...impossible to miss. If ur incompetent at following step by step directions u should not be Modding your phone. Seek help and knowledge before doing anything...u don't want a 600 dollar paper clip do you?
sent from my vanilla voodoo fascinate
Click to expand...
Click to collapse
No, but I also don't see the need for the disrespectful way you are treating someone looking for help.
Not everyone out there is as "smart" as you may be with modding but that's what this forum is for. Questions and answers, not smartass replies that don't help at all.
I appreciate the other posters response because at least he gave me information with no attitude. If you want to help someone, help them, don't demean them and offer a little advice.
jenisiz said:
Not to be a ****...but the first thing you learn when reading is how to flash the modem using ODIN...so, yeah....
Since you've f'd up the phone already. Download the restore to stock files and odin. Go to someone with a PC and follow the restore directions to the T. DO NOT FALTER.
Click to expand...
Click to collapse
The phone is working fine, if not better than before.
TheFake said:
The phone is working fine, if not better than before.
Click to expand...
Click to collapse
Honestly, you haven't done anything to your phone yet, so it shouldn't be running any differently than it was before.
There is a way to push CWM using ADB and Terminal on a Mac, but you would still need Odin to flash the modem, so might as well do everything that way. Download this Odin package from Android Central, and flash that using the PDA box in Odin. After that, you can flash a different 2.2 ROM or theme if you like
The only thing I am having trouble with is how to "flash" something.
TheFake said:
The only thing I am having trouble with is how to "flash" something.
Click to expand...
Click to collapse
Go to the Eb01 modem thread and read it. They will tell you how to "flash". You download the modem, plug in your phone, select PDA in ODIN and hit write or whatever...
It's as easy as reading and searching,
http://forum.xda-developers.com/showthread.php?t=948679
Not searching for things will get you flamed, ignored and banned (If not reading the rules). The reason I suggested you flash back to complete stock is because until you know what flashing is, difference between a ROM and a Radio...you are in dangerous territory of bricking your phone.
Guys, I'm also new to this flashing thing, but I've used Odin before and have read all the steps in the EB01 thread. My question is: can I install EB01 on top of stock, unmodded EA28 (which is the latest Eclair from Verizon) without wiping my data? All sets of instructions I've read include wiping, wiping, wiping... But since the new ROM is supposedly signed with the same Samsung/Verizon key as my current ROM, why shouldn't I be able to just install it on top, without wiping my data?
Or is it that because the guy who posted the ROM actually modified it, it's no longer signed with the Samsung or Verizon key?
I searched, but didn't find. I think the answer to this may be relevant to the original poster of this thread too, that's why I'm posting here.
thetodor said:
Guys, I'm also new to this flashing thing, but I've used Odin before and have read all the steps in the EB01 thread. My question is: can I install EB01 on top of stock, unmodded EA28 (which is the latest Eclair from Verizon) without wiping my data? All sets of instructions I've read include wiping, wiping, wiping... But since the new ROM is supposedly signed with the same Samsung/Verizon key as my current ROM, why shouldn't I be able to just install it on top, without wiping my data?
Or is it that because the guy who posted the ROM actually modified it, it's no longer signed with the Samsung or Verizon key?
I searched, but didn't find. I think the answer to this may be relevant to the original poster of this thread too, that's why I'm posting here.
Click to expand...
Click to collapse
It's always recommended to wipe. Those that don't are typically those who end up complaining about bad battery life, force close loops and utter suckageness...now flashing let's say super clean 2.0 to 2.2...that's fine bypassing the wipe, but imho that's the only exception.
thetodor said:
Guys, I'm also new to this flashing thing, but I've used Odin before and have read all the steps in the EB01 thread. My question is: can I install EB01 on top of stock, unmodded EA28 (which is the latest Eclair from Verizon) without wiping my data? All sets of instructions I've read include wiping, wiping, wiping... But since the new ROM is supposedly signed with the same Samsung/Verizon key as my current ROM, why shouldn't I be able to just install it on top, without wiping my data?
Or is it that because the guy who posted the ROM actually modified it, it's no longer signed with the Samsung or Verizon key?
I searched, but didn't find. I think the answer to this may be relevant to the original poster of this thread too, that's why I'm posting here.
Click to expand...
Click to collapse
You can install without wiping (saying from experience) as long as you dont mind problems later. I had plenty of force close problems and widget problems when I didnt wipe data.
Most ROM here are modified, to help protect the person who leaked it.
Interesting. Do we know the cause of those problems? How come no such problems exist when you update OTA with a similar official build?
I'm a developer and it seems weird to me that if you're starting with a stock ROM and upgrading to another stock ROM, apps will have issues. Or are the issues due to the fact that the newer ROM is still buggy (and that's probably why they haven't officially released it yet)?
Also, it doesn't hurt to try, right? And if I do get problems, THEN I can just do a simple wipe and start off clean. But if I don't have huge problems, I don't have to go through the trouble of restoring all my apps and settings, logging into everything again, etc.
it's not hard to restore apps/data, use titanium backup.
go ahead and try it without wiping, just do a full nandroid backup first. then if it sucks or you get funny errors you can revert really easily. I'd wipe with a major change like this, but if you're determined to try it there's really no big downside. just back up!
I ran EB01 over the weekend, didn't like a couple of things and was back up and running on DL09 in no time when I decided to switch back.
Its recommended to wipe but I've seen it a lot where u OK not wiping... u can try without and it u get bootloop just do a wipe. Like posted...titanium backup is ur bff when I mod.
Also about the post about me being rude.. I gave u the info u need...just telling you to research. U said u did, and I pointed out u didn't. If your not going to take the time to learn what ur doing...then expect help ASAP...expect ppl to b a bit rude. Ppl are welcome to help...but if u do something dumb without research...expect people to tell you.
Glad u got it working ok
sent from my vanilla voodoo fascinate
Just FYI everyone, I was able to to install Froyo without wiping and everything works fine. (except that my home screen shortcuts and maybe even some of my settings got reset... which was one of the things I was trying to avoid... but whatever.). The only issue I've run into so far is that Google Maps hangs for many seconds every once in a while. But I reset its internal cache and it's better now. All other apps are working fine.
umm "TheFake" is obviously a troll
nobody is that stupid, and his screen name gives it away
I have one of those Legends that require a downgrade before you root, but I decided to chicken out and after I downgraded to 1.31 or whatever it was, I decided to debrand my Bell Legend and chicken out to get the worldwide Froyo OTA. Plus, it was getting late, I didn't want to accidentally screw up the rooting because I was tired.
Anyway, after I downgraded, I installed a system update that brought me to Eclair-update-1. I don't think that was a really good idea.
Because afterwards, when I tried installing the debranded RUU from the debrand thread, it resulted in an error and I have to keep what I have right now.
UNLESS YOU GUYS HELP.
What did I do wrong? I'm only still a kid. Hell, I thought I bricked my phone halfway through installing the first RUU because there was something wrong with the drivers, I ALMOST TEARED UP FFS.
Oh yeah, and wtf is up with this BS where you format the SD card to turn it into a Goldcard, and HTC Footprints just decides to move its crap into the SD card RIGHT AFTER I FORMAT IT. It's not important, but I was just wondering.
I might have been missing some details (it's late) so please post below and tell me what I'm missing.
Thanks in advance!
PS: Oh yeah, have I voided my warranty yet? Technically, I mean. I COULD still clean it up somehow, and make it seem like I didn't do anything to it, right?
PS2: OK, now I'm getting USB errors 171 and 170 when installing RUUs. I can't get out of the RUU I'm on. Oh crap.
PS3: I just got Error 140, BOOTLOADER Error. What did I do wrong here?
At least I'm at the phone's home screen now, no more unfamilar scary-ass HTC LOGO territory.
Basically the update to "2.1-update1" brought you back to where you were before the downgrade. Your phone is stock right now.
So first relax and get some sleep
Do the downgrade again. DO NOT UPDATE.
Continue the debranding/gold card procedure.
good luck
p.s. your warranty might technically be void when you install another ROM or debrand or root, mostly they don't care as long as you didnt drop it in water . There is always a way to bring it back to stock/unroot
Oh my goodness I love you. I just noticed (while I was tired, wow, that's strange) that the strange ROM number within the About Phone menu finally clicked with what I've been doing! NO UPDATE.
So I decided to call it a night after I try once more.
So I downgraded to w/e. It was fine.
And I tried the debranding RUU. Then I got a bootloader error. I guess I'll try to find out what that means when I wake up, I'm super sleepy. (Unless you guys can help me 'til then )
It was error 140 or something like that, but it booted me fine to my downgraded ROM, so I'm good for the time being.
Good night!
EPIC ACHIEVEMENT EDIT:
Alright, I rooted it. Sweat all over the place, but hey, don't blame me. The problem above is still experienced by many people all over the internet, unfortunately. Too bad I can't answer it.
Just a question before I flash my first ROM with ClockworkMod: What about fixes? How do I flash those? Super noobish, but yeah.
So after hours of searching, and being on the verge of tossing my phone against the wall I am asking if anyone has the stock rom zip file that I can flash. Everything I am finding leads to broken download links, or corrupt files.
I have also tried to get HTC sync to work, so i can just flash the new update and be done with it. But I can not get HTC sync to see my phone, no matter what rom Ii flash before hand. I currently have a old reworked 2.1 rom, was hoping that would be seen by HTC sync.
Uhhh dude so are you trying to push it back to stock? If so, google FROYO 2.2 official mytouch 3g slide an their should be a thread on tmobile.com saying something like "ladies and gentlemen, froyo 2.2" (or a variation of that) an it will hav instructions on how to install Stock 2.2 froyo! I hav rooted and unrooted my phone 3x literally with it (if I get bored with root I go back to stock, and vice versa) and if you ever want to re-root, go to my thread in this forum (how to get the most out of your slide) and I hav a link on how to re-root your device. I really hope I answered your question!
Sent from my T-Mobile myTouch 3G Slide using XDA App
http://forum.xda-developers.com/showthread.php?t=946435
lolToasty said:
http://forum.xda-developers.com/showthread.php?t=946435
Click to expand...
Click to collapse
Thanks, going to do that one tonight. Not sure how I missed it, I must have assumed I already looked at the thread just from reading the title?
ended up unrooting it before work, and updating to 2.2 just to be safe. Everything went smooth, other then having to restart the update process when I hardly bumped my usb cord disconnecting it. But that was the reason for the warranty.
the stock esprimg.zip file can be flashed via rom manager OR recovery and then do the update to 2.2 using HTC sync, just FYI if anyone wanted to know.
I tried flashing the esprimg.zip through rom manager, and had no luck going that route. Its been so long since rooting it, I didn't think to load the esprimg using the vol down/power combo.
You're always safer doing it from recovery as you can get some bad results doing it through rom manager.
Hi
I am new to Andriod, I just bought a Atrix from someone which came with the cyanogenmod 7. I was able to install Google market, however I am not sure how to restore to stock, atleast for now I want to restore to stock get more comfortable with it and then install custom rom
I downloaded the drivers off motorolla, when I plug-in into usb it is not reconized. I also downloaded the roms posted on the motorolla website and tried installing the different version ( gingerbread and froyo) but I got error code 7.
If anyone can explain me in lament terms what would be needed to be done to restore to factory, I would greatly appreciate. I do not teether or need hot-spot for now, so will do custom little later..Thanks
Also I checked, there were no backup, so can restore off backup.
Install ROM Manager from Market, flash CWM with it. Then download a fruitcake from XDA dev section to your phone. Finally open ROM Manager and install it, be sure to check both wipes when you get prompted to do so by ROM Manager
Easiest way
would be to install a similar ROM such as Alien 4 without the theme. It looks and works almost exactly the same way as the stock ROM but with added goodies such as Tethering (all you have to do is turn it on to make it work) and the Droid 3 camera app which allows you to record video in 1080p. Just download the zip file into the memory card and flash it and you should be good. Let me know if you need assistance
Just a sidenote, you asked for "stock Android"... CM7 is as close as you are going to come (at this moment) to what we call "vanilla" or even "stock" ANDROID. I understand you want stock MOTOBLUR, but that is far from stock Android.. I thought I would point that out to you jic.
Sorry for the confusion for stock android I mean motoblur gingerbread. I meant the one which ships with the phone and since Motorola came out with gingerbread update I would like to have that installed.
Someone I was talking to today said if you root you device and try going back, device will brick, is there risk involved in this process?
AAD_1 said:
Sorry for the confusion for stock android I mean motoblur gingerbread. I meant the one which ships with the phone and since Motorola came out with gingerbread update I would like to have that installed.
Someone I was talking to today said if you root you device and try going back, device will brick, is there risk involved in this process?
Click to expand...
Click to collapse
you're being misinformed, rooting your device poses no risk. all rooting does is give your device root access to system files.
however, if you do the Gingerbread OTA update through Motorola, you're going to end up stuck on Gingerbread. if you attempt to RSD flash a .sbf file to downgrade, you will break your device.
however, you can install a froyo fruit cake to downgrade to Froyo if you don't like Gingerbread.
just look at the top of this forum and read the noob thread, it has all the information you need. after reading it, read it again. and after that, go into the development forum and read all of the stickies there. after that, go and read the noob thread again and then you should have all your questions answered.