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Old 03-27-2024, 01:47 PM   #1
catlipsx
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Is there any possible way to get the old firmware of GL4?

I purchased a GL4 on eBay, and it arrived today in South Korea. While I was waiting for it to charge, it automatically updated its software. Unfortunately, due to this update, I am unable to download any other Android apps using ADB as I cannot enter USB debugging mode. I was wondering if there's an alternative method to downgrade the firmware version?
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Old 03-27-2024, 02:44 PM   #2
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Sorry, but you cannot go backwards.
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Old 03-29-2024, 12:43 PM   #3
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Go over to XDA. I think I saw your same post on Reddit, too. Someone responded to this but if that wasn't clear enough, just go over to XDA--there's threads talking about how to. Not hard at all, but you will be eventually updated again, so make sure are not on Wi-Fi while you're doing what you need to do.
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Old 03-30-2024, 08:21 AM   #4
catlipsx
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any links?

Do you have any links for that post? I looked up at XDA and couldn't find it
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Old Today, 11:22 AM   #5
Luisxv
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Hi, for those that updated the password to access the developer options is "NOOK-BNRV1300" without the quotes, alternative for the glowlight 4 is "NOOK-BNRV1100" and for the glowlight 4E is "NOOK-BNRV1000"
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Old Today, 12:37 PM   #6
rcentros
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Quote:
Originally Posted by JSWolf View Post
Sorry, but you cannot go backwards.
You might be able to go backwards, but it doesn't look easy.

Fortunately for the OP, the password is known (see Luisxv post) so ADB should be available.
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