Download RC33 Manually
| by Rob Jackson on February 6th, 2009 |
Checking your G1 every other minute to see if RC33 has been beamed down upon you? Welcome to the club. Fortunately, you don’t have to wait to join. We got an email yesterday (Thanks Peter) with a link to to the most recent firmware update, version 1.1 and RC33. Here is a direct link to the file:
- https://android.clients.google.com/updates/si gned-PLAT-RC33-from-RC30.f06aa9b3.zip

We didn’t spread the word soon enough but it appears the rest of the interwebz did and as everyone else proclaimed, PROCEED AT YOUR OWN RISK. UPDATING MANUALLY IS NOT ENDORSED BY PHANDROID AND COULD BRICK YOUR PHONE AND VOID YOUR WARRANTY. That being said, if you’re a rebel and want to dive into the deep end, MobileCrunch provided an excellent guide to updating manually that we’ve pasted below:
Note: You must currently be on RC30 for this to work.
Mandatory warning: Updating firmware can be a delicate procedure, so continue at your own risk. Always back up everything. Make sure to check the hash or otherwise verify a firmware’s source. Whenever possible, download it directly from Google (as you will in this tutorial). Make sure that your battery is charged so as to keep it from fizzling out mid-update, and that you don’t have the G1 plugged into USB during the actual update process.
1. Grab the RC33 update from Google here.
2. Rename it from signed-PLAT-RC33-from-RC30.f06aa9b3.zip to update.zip, and place it at the root (the very top directory) of your Micro SD card. (If you added the file to your microSD card by connecting the handset to your computer via USB [rather than using a dedicated microSD card reader], make sure to unmount it and disconnect the USB cable now.
3. Turn off your G1, then turn it back on by holding the Home+End keys until you see an icon popup after the T-Mobile G1 logo.
4. From the icon screen, open the keyboard and hit Alt+L. This allows you to see what’s going on during the update.
5. Press Alt+S to begin the update. Remember, the update needs to be in the root of the Micro SD card and needs to be named update.zip.
6. Once it finishes, follow the onscreen instructions and press Home+Back to finish.
7. The G1 will reboot a few times to flash different parts of the firmware.
If all went well, you should now be running the latest update, RC33. To make sure all your hard work wasn’t for nothing, hit Menu > Settings > About Phone > scroll to Build Number. You should see RC33 in there somewhere. Congrats!
Notes:
- Some microSD cards don’t seem to play friendly with this process. If you have trouble with one card, try another..
Links have been reportedly up and down but XDA-DEV forum has a bunch of mirrored versions you can download here.
Also, please tell me that somebody (cough anyone that has played Tony Hawk cough) understands the above picture?


1. Joel McLaughlin wrote on February 6, 2009
Works great! Lattitude is SWEET!
2. byronicman wrote on February 6, 2009
Won’t work for UK, I take it? We’re on TC5-R8 :(
3. William Ferrell wrote on February 6, 2009
Worked like a charm! Thanks :)
FYI — the “last” reboot into RC33 (where the Android logo throbs for a minute) takes longer. Don’t panic and don’t reboot/power-cycle the poor beast or it’ll have to start over again and it’ll just take even longer.
4. David wrote on February 6, 2009
Worked perfect. I’ve been using latitude for a couple weeks and very glad to see it integrated into maps now, great feature and i can uninstall loopt.
Best best best part … I just spent about 2 hours flagging comments as spam. Don’t know if it takes a certain number of flags to make it go away. but gosh darnit i’m going to do my part.
5. julio cortez wrote on February 6, 2009
works great!
6. Kevin wrote on February 6, 2009
Has anyone tried this on the G1 Dev phone yet?
7. Rich wrote on February 6, 2009
The update came for me right in the middle of a txt message.. pissed me off. What is lattitude? I notice the GPS icon shows when I power up my phone now.
8. jdb82 wrote on February 7, 2009
I’m also wondering if someone tried this on a dev phone…
Thanks.
9. Daniel wrote on February 7, 2009
See here for more info on latitude:
http://www.google.com/latitude/intro.html
10. Eri wrote on February 7, 2009
Home+End is not working for me.
11. daje wrote on February 7, 2009
when renaming the file, users should type only update and not update.zip , zip is automatically added. If they type zip, the update will not work.
12. jeff wrote on February 7, 2009
Lol “manual download” at first I was like wtf does a skateboard have to do with this??, hahah nice.
I’m too much of a chicken to try and do it myself, I’m pissed my wife got the update already when she was standing RIGHT BESIDE me 4 hours ago!
Waiting and waiting and waiting, I played with her vocal search, I said “supercalifragilisticexpealodochas” and it thought I said “super california flights along the ocean” lmao, I tried it again a bit slower and it totally got it right! (:
13. David wrote on February 7, 2009
Latitude is google’s integration of location based social networking, sort of. If you’ve used loopt its somewhat like that, but integrates with the phone for sms, email, etc. You request sharing with your friends and if they accept you can see each others location or customize it for any or all friends so they can see just what city or nothing at all.
Its pretty cool in my opinion. I don’t worry about privacy like the media seems to, if you don’t want someone to see where you are you can just turn it off for them.
14. Rich wrote on February 8, 2009
Thanks David for the response. I have now grown to like latitude and the potential it has. It’s great to see this phone keep getting better.
15. Alex wrote on February 9, 2009
Can we select between German and English? I need the german Firmware that some People can modify it but t-mobile Germany say updates only UAP.
16. eric wrote on February 9, 2009
i cant seem to find the directory for micro sd. whats the problem? i plugged in the usb and everything.
17. Derrick wrote on February 10, 2009
Thanks alot! Just when I think it can’t suprise me it does.
18. Steve wrote on February 11, 2009
No this update does not work on the Dev 1 Phone when you attempt to install it it errors out and restarts the phone… But some good news it doesn’t brick the phone :) guess we will have to wait and see if google releases a update for the Dev 1 phones…
19. Jesse wrote on February 11, 2009
ive never been one to manually update anything. in this day and age things should update automatically and so i caved in and updated my g1 (which im not very happy or impressed with), and I DID IT. it actually worked. it worked flawlessly. I’m loving the voice search…im using it instead of using bookmarks lol….awesome.
20. SeeYee wrote on February 11, 2009
it work work with mine. it says cant open! despriately need help!!!!
21. SeeYee wrote on February 11, 2009
WONT*
22. havi007 wrote on February 18, 2009
for some reason it the file wont go on to my sdcard im gonna reformat it
23. Markbob wrote on February 20, 2009
manual download= brilliant!
24. bob wrote on March 1, 2009
WONT WORK 4 ME (in uk) if i take it off the memory card and restart now will it kill my phone? plz help me!
25. bob wrote on March 1, 2009
any ideas? plz help! im not ever shutting down my phone at the moment.
26. bob wrote on March 1, 2009
dont worry i was on rc8 opppss ! sorry
27. Ragnar wrote on March 1, 2009
I also have the RC8.. what am I supposed to do? can I use this file to update it, or do I need another update file first?
28. Ragnar wrote on March 1, 2009
if I update to RC30 Mod v 1.2, is it then possible to update to RC33?
29. Ragnar wrote on March 1, 2009
just noticed I have the UK version, so this is nothing for me, or what?
30. jonathan wrote on April 6, 2009
uhm everytime i download tha program it dont wanna go to my sd card cause tha folder is zip how do i unzip it
31. Sriram wrote on May 26, 2009
Did google remove the zip file? The server says ‘url not found’ … boo hoo….
32. Scentsy wrote on December 25, 2009
It’s official. I just bought my Droid phone yesterday and it is AMAZING. I am wondering how I ever survived without it. The time I could have saved over the past year with my business if only I would have known.
What baffles me, is the fellow at the store was trying to convince me that blackberry would be better. I don’t think there is any comparison.
I would highly recommend it to anyone.