1. no
2. there isnt any newer crack of ws
3. there are samsung and other tools that will write it but you wont be finding them posted for free anywhere.
And fyi changing your meid is NOT repairing its called cloning and because alot of peeps do it, it doesnt make it legal so be careful how you word your posts, if you did in fact read the rules you would know that it is for the most part not allowed to openly discuss here, look at the edits I made in your post so you can know what to do to keep your posts from being deleted.
I would suggest you send your phone to someone who has the proper tools and can do it for you if you dont want to buy any tools.
anyway good luck and welcome to the forum.
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