[maxhbao]

Hi, I used to have a 3.72 ps3 but then I took it to a shop and they used an e3 flasher to downgrade it to 3.55 and now I have 3.55 CFW. I read that there is a new CFW 4.21 and I was wondering how I can upgrade my CFW to 4.21 Rogero without any problems and bricks

[playerkp420]

Since someone else downgraded your ps3, you don't know if they have dehashed.

So do this to be safe.
1. Quick format your USB flash drive to fat32.
2. Place the toggle_qa.pkg file onto the root of your flash drive.
3. Put in your PS3.
4. Navigate to install packages and install the package.
5. Go to Toggle QA app on the XMB and click X.
6. You will here 3 quick beeps and see a blackscreen, then it will return to the XMB. If it doesn't beep and return to XMB, reboot and try again. (Remember you will need your blu ray drive connected to run the app)
Step 7. is not necessary. I do step 7. just to make sure the QA flag worked.
7. Then navigate to Network settings and press L1,L2,L3,R1,R2, and down on the d-pad.
Now more options will appear in your menu.
8. There is no need to change any settings in this menu.
9. Enter recovery menu on your PS3.
The easiest way to enter recovery menu is with condorstrike's app Condor Updater.
a. Install Condor Updater.pkg
b. Run the app from the XMB.
You will now be in the recovery menu, continue with Step 10.

Or use the old fashion way:
a. with the PS3 on press and hold power till the machine turns off.
b. hold power button again til the PS3 turns on then off again.
c. hold power again until it beeps 3 times.

10. Put the OFW3.55_PS3UPDAT.PUP on your flash drive like this:
root:PS3/UPDATE/PS3UPDAT.PUP [remember to rename to PS3UPDAT.PUP]
11. Insert into the right usb port of the PS3 and choose option 6. If you used Condor updater there is no options, press start and select.
12. Follow the on screen instructions.

Now you will be on OFW 3.55.
You can install a Kmeaw CFW from system update on the XMB. Just replace the PUP file with your choice of CFW with the one on your flash drive.
If you get an error trying to install CFW from the XMB: you will have to enter recovery menu, the old fashion way. Condor Updater will not work on OFW.

Then install Rogero 4.21 cfw from xmb. If you have a cech-25xx with date code 1a(1a=Jan,Feb,Mar 2011 manufacturing date), you might want to wait, because I have seen lots of bricks.

[maxhbao]

Originally Posted by playerkp420 Since someone else downgraded your ps3, you don't know if they have dehashed. So do this to be safe. 1. Quick format your USB flash drive to fat32. 2. Place the toggle_qa.pkg file onto the root of your flash drive. 3. Put in your PS3. 4. Navigate to install packages and install the package. 5. Go to Toggle QA app on the XMB and click X. 6. You will here 3 quick beeps and see a blackscreen, then it will return to the XMB. If it doesn't beep and return to XMB, reboot and try again. (Remember you will need your blu ray drive connected to run the app) Step 7. is not necessary. I do step 7. just to make sure the QA flag worked. 7. Then navigate to Network settings and press L1,L2,L3,R1,R2, and down on the d-pad. Now more options will appear in your menu. 8. There is no need to change any settings in this menu. 9. Enter recovery menu on your PS3. The easiest way to enter recovery menu is with condorstrike's app Condor Updater. a. Install Condor Updater.pkg b. Run the app from the XMB. You will now be in the recovery menu, continue with Step 10. Or use the old fashion way: a. with the PS3 on press and hold power till the machine turns off. b. hold power button again til the PS3 turns on then off again. c. hold power again until it beeps 3 times. 10. Put the OFW3.55_PS3UPDAT.PUP on your flash drive like this: root:PS3/UPDATE/PS3UPDAT.PUP [remember to rename to PS3UPDAT.PUP] 11. Insert into the right usb port of the PS3 and choose option 6. If you used Condor updater there is no options, press start and select. 12. Follow the on screen instructions. Now you will be on OFW 3.55. You can install a Kmeaw CFW from system update on the XMB. Just replace the PUP file with your choice of CFW with the one on your flash drive. If you get an error trying to install CFW from the XMB: you will have to enter recovery menu, the old fashion way. Condor Updater will not work on OFW. Then install Rogero 4.21 cfw from xmb. If you have a cech-25xx with date code 1a(1a=Jan,Feb,Mar 2011 manufacturing date), you might want to wait, because I have seen lots of bricks.

Wow, thanks so much for the detailed reply
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I have a CECH-2501A