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PSP Downgrade Guides

Step-by-step instructions for users seeking to downgrade their PSP firmware to an earlier version.
R
5.00 M33/5.50 GEN-D3 downgrade to 3.52 M33/OE
Replies
2
Views
6K
Alex
Alex
revolucionario
Downgrade PSP 3000 OFW 5.50
Replies
4
Views
22K
n00b81
N
x3sphere
Downgrading Custom Firmware (OE / M33)
3 4 5
Replies
90
Views
53K
A.0.A
A.0.A
x3sphere
3.50 Downgrade Guide
10 11 12
Replies
220
Views
80K
january39
january39
x3sphere
3.03 Downgrade Guide
2 3 4
Replies
73
Views
33K
VEGAN0011
V
x3sphere
2.71 Downgrade Guide
2 3
Replies
42
Views
28K
appoloin
A
x3sphere
2.80 Downgrade Guide
2
Replies
30
Views
14K
jake.299
J
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