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How would you remove these in a way that they can be reattached?

I've found no brand specific info(contacted support as well), a local repair shop told me the same thing I already knew(defect most likely under the shields, removal is time-consuming), so it's time to generalize.

Anyone here, who knows what I should be prepared to learn to work with? The phone is Asus Rog Phone 3.

My motherboard - https://ibb.co/GxCfb6Z

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Screenshot of the motherboad without the shields - https://ibb.co/xC3CkG7

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mannga you are way to general. It might help if you are telling us what it is that you want to reattach? What has come off? What's going on with your phone? What information are you looking for?

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@oldturkey03 I need to remove the metal shields that are circled in the images, because there might be some defects to the contents under. The rest of the motherboard is not defective, these are the only places that couldn't be checked. I will need to reattach them afterwards.

Phone recognizes charger, the empty battery charging icon shows up, but the phone won't boot or charge. The chips under the plate heat up, so there might be something working there.

After a screen replacement(screen was tested before on the same phone, which was in fully working condition), I decided to swap the old, dried up thermal paste for new. I gently wiped the old one off, but since it's in such a small scale, I might've pushed a bit of it under the shields, which might be too much. I now that thermal paste is non-conductive, and I have been told that it couldn't be the cause of my issue. I did try to rinse it out with 90% isopropyl, but the plates are sealed on there pretty tightly, so I might've made a bigger mess.

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@mannga that will depend on how you take them off. Most of the EMI shields can be removed with a heat gun and after that you can actually resolder them. If you have to cut them off (yes sometimes a pair of good scissors works great, you will have to straighten them after but you can still resolder them as well. Some people even leave them off altogether. I guess it will depend on your technique as well as your skills.

All the board and even so most of us cannot remove them, there are those that have specialized on the repair of those IC’s. Check the work of people like @refectio @imicrosoldering @thegsmsolution and many others on here. What you will need is some assistance with board level repair etc. and your challenge will be finding schematics etc. for the make and model of this phone.

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@oldturkey03 I had a hunch, that I'd need a heat gun. I haven't used one before and most that are available locally are large(for construction), which would be too risky. Do the users you mentioned also have tips on choosing and using a heat gun?

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Hello mannga! It would appear that the chips you have circled in your images are soldered directly onto the motherboard of the phone. This is very unfortunate as this means you cannot replace these chips without replacing the entire motherboard of the phone. As for removing the metal shields, that should not be very difficult as they would appear to only be held on with some strong adhesive. You can usually soften it with a hot blow dryer or heat gun and slowly work it off with a Uspudger or your fingers. You could also try dissolving it in some rubbing alcohol, but this method is not as preferred. If a repair shop has told you that the defect is under the shields, I am sorry to tell you that the likelihood of the ability to get it fixed is very low. At this rate, I would recommend that you go online or to a repair shop and ask that your whole motherboard be replaced as all of the chips on it are soldered directly to the motherboard. Hopefully this answered your question and will resolve your problem.

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@justatechiekid iFixit before iReplaceit. There is no cellphone or tablet that does not have the IC's soldered to the main board. That is where the strength of iFixit comes into play. Check the work of people like @refectio @imicrosoldering @thegsmsolution and many others on here and see what wizardry they can accomplish.

Welcome to iFixit! Here we save the world one device at a time.

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@oldturkey03 Yes, but for the average "regular Joe" as you describe yourself, you wouldn't want to go through the trouble of desoldering components onto a motherboard if you do not even have the proper experience or tools to do so which could ultimately result in a more expensive fix or total failure altogether.

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@bobsinger you are right but we have to give the options and let the OP sort out what they can or cannot do. We do not know their competence level nor their background.

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@justatechiekid I would replace the motherboard, but Asus doesn't provide that replacement part for this model. That's why I started asking around. The repair shop offered to do the same thing, but for at least 200 eur. And if it's not going to work afterwards anyway(they said that they might find the problem, but the price was for the time-consuming part), I might as well learn to do it on my own. And if I do fix it, well hot dang, I got a new phone for about a 6th of it's price(screen was 120)

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mannga estará eternamente agradecido.
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