Does Kindle PaperWhite or any other models of Kindle Get Blur after a YEAR?

RS 5000 or $100 is not a small amount, I'm a guy who study properly before buying anything, so I read a comment actually a lot of comment that after a year or after 1 year or after 6 month screen start becoming blur.
I want to ask main 4 question, no matter you are Indian or belong to any other country but kindly mention that
1. Does you kindle got blurred?
2. What other issued did you faced?
3. Is Kindle a good investment or with that money should we buy book
4. This question is especially for Indian, what were the respond of after sales service?

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Can I do this with amazon monthly payment

I want to buy a kindle fire and there's an option that lets you pay motnth by month the amazon device you want to buy. One of the requirements is to live in the USA, but, I live in Argentina, although I have a p.o box address in miami and I have bought things from amazon in the past without any problem but is it possible this time to buy paying monthly?

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Is marvel unlimited worth getting?

I want to read spiderman 2099 the ones that came out in 1992 but I don't have a lot of money to spending it all on comics, so I was thinking of either using the kindle app on my phone or subscribing to marvel unlimited. Which one sounds better and cheaper to you?

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I'm thinking of buying a Kindle eReader, how I add books I have already bought on the Google Play store?

ISBN number?

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My kindle fire tablet won't let me install any apks I can download them I know how to do that much, but the install button does not highlight?

My kindle fire tablet won't let me install any apks I can download them I know how to do that much, but the install button does not highlight?

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Problem with APKs all of a sudden on Kindle Fire?

All the apks I downloaded before yesterday worked. The "Install" button is impossible to press as of yesterday and today, as you can see in the photo. Please help!
Added (1). Yes, I tried other APKs and I've also tried shutting down my device. I checked my settings and "downloads from unknown sources" is turned on! This is weird…

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Is it good to power off and restart your Kindle Fire occasionally?

Is it good to power off and restart your Kindle Fire occasionally?

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I bought the Micro Dr Card Adapter and still I do no know how to use it in the Kindle Fire Tanlet!

I bought the Micro Dr Card Adapter and still I do no know how to use it in the Kindle Fire Tanlet!

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Why can I not download kindle kids book creator onto my Tablet?

Why can I not download kindle kids book creator onto my Tablet?

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Starting online publishing company that translates and sells via kindle and amazon. Do I need to register the company to the state?

Starting online publishing company that translates and sells via kindle and amazon. Do I need to register the company to the state? - 1
Added (1). Starting online publishing company that translates books sells via kindle and amazon. Do I need to register the company to the state by filing a fictitious business name statement, or a doing business as (DBA)? If so do I need register as an LLC?

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