Insert the sim card removal tool into the hole located at the top of the phone. Press the tool firmly into the phone to get the sim card tray to eject from the slot. Insert the sim card removal tool into the hole located at the top of the phone. Press the tool firmly into the phone to get the sim card tray to eject from the slot. Insert the sim card removal tool into the hole located at the top of the phone. Press the tool firmly into the phone to get the sim card tray to eject from the slot.
  • Insert the sim card removal tool into the hole located at the top of the phone. Press the tool firmly into the phone to get the sim card tray to eject from the slot.

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Remove the two Phillips head screws located on the top of the phone. One is hidden under an orange sticker, removal of this sticker will void your warranty, this sticker can be removed using a set of tweezers.
  • Remove the two Phillips head screws located on the top of the phone.

    • One is hidden under an orange sticker, removal of this sticker will void your warranty, this sticker can be removed using a set of tweezers.

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Removal of the orange sticker reveals a hidden screw that needs to be removed. Removal of the orange sticker reveals a hidden screw that needs to be removed. Removal of the orange sticker reveals a hidden screw that needs to be removed.
  • Removal of the orange sticker reveals a hidden screw that needs to be removed.

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We now want to insert a pry tool into the upper portion of the phone, where there is a small gap between screen and frame of the phone. Be careful when working the pry tool on the phone as it can result in damage to the phone's screen or other components. Be careful when working the pry tool on the phone as it can result in damage to the phone's screen or other components.
  • We now want to insert a pry tool into the upper portion of the phone, where there is a small gap between screen and frame of the phone.

  • Be careful when working the pry tool on the phone as it can result in damage to the phone's screen or other components.

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Once a pry tool has been inserted into the phone, work it around the entire perimeter of the phone until the screen of the phone separates from the frame. Once a pry tool has been inserted into the phone, work it around the entire perimeter of the phone until the screen of the phone separates from the frame. Once a pry tool has been inserted into the phone, work it around the entire perimeter of the phone until the screen of the phone separates from the frame.
  • Once a pry tool has been inserted into the phone, work it around the entire perimeter of the phone until the screen of the phone separates from the frame.

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Once a pry tool has been inserted into the phone, work it around the entire perimeter of the phone until the screen of the phone separates from the frame. Once a pry tool has been inserted into the phone, work it around the entire perimeter of the phone until the screen of the phone separates from the frame.
  • Once a pry tool has been inserted into the phone, work it around the entire perimeter of the phone until the screen of the phone separates from the frame.

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The phone should now be separate from the exterior frame portion of the phone. The phone should now be separate from the exterior frame portion of the phone.
  • The phone should now be separate from the exterior frame portion of the phone.

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Place the phone screen side down with the camera located at the top. Remove the 7 Phillips head screws, located on the upper portion of the phone. One of these screws is hidden under an orange sticker at the top right corner of the phone, removal of this sticker can be removed using a set of tweezers.
  • Place the phone screen side down with the camera located at the top.

  • Remove the 7 Phillips head screws, located on the upper portion of the phone.

    • One of these screws is hidden under an orange sticker at the top right corner of the phone, removal of this sticker can be removed using a set of tweezers.

You miss circle mark that bolt top left you are loosening. total 8 bolt.

ary - Reply

Remove the 3 screws located at the bottom of the back side of the phone. Remove the 3 screws located at the bottom of the back side of the phone. Remove the 3 screws located at the bottom of the back side of the phone.
  • Remove the 3 screws located at the bottom of the back side of the phone.

Why do you need to remove lower cover ?

Marcel Robert - Reply

Using tweezers, remove the rubber dust cover on the back panel of the phone. Using tweezers, remove the rubber dust cover on the back panel of the phone. Using tweezers, remove the rubber dust cover on the back panel of the phone.
  • Using tweezers, remove the rubber dust cover on the back panel of the phone.

Why do you need to remove that ?

Marcel Robert - Reply

Not necessary for this goal. Do this for your own fun, if you like. Insert a plastic opening tool into the bottom of the phone, then work it around the lower portion of the phone in order to remove it from the plastic cover. Not necessary for this goal. Do this for your own fun, if you like. Insert a plastic opening tool into the bottom of the phone, then work it around the lower portion of the phone in order to remove it from the plastic cover. Not necessary for this goal. Do this for your own fun, if you like. Insert a plastic opening tool into the bottom of the phone, then work it around the lower portion of the phone in order to remove it from the plastic cover.
  • Not necessary for this goal. Do this for your own fun, if you like. Insert a plastic opening tool into the bottom of the phone, then work it around the lower portion of the phone in order to remove it from the plastic cover.

Really needed ?

Marcel Robert - Reply

Insert a plastic opening tool into one of the top corners of the phone, then work it around the exterior portion of the phone until the plastic cover can be easily removed from the phone. Insert a plastic opening tool into one of the top corners of the phone, then work it around the exterior portion of the phone until the plastic cover can be easily removed from the phone. Insert a plastic opening tool into one of the top corners of the phone, then work it around the exterior portion of the phone until the plastic cover can be easily removed from the phone.
  • Insert a plastic opening tool into one of the top corners of the phone, then work it around the exterior portion of the phone until the plastic cover can be easily removed from the phone.

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After working the pry tool the top cover can be easily removed. Some models have their NFC antenna on the back of the battery glued to the top cover. It is not possible to remove the top cover without the battery. In that case, check the touchscreen guide. Some models have their NFC antenna on the back of the battery glued to the top cover. It is not possible to remove the top cover without the battery. In that case, check the touchscreen guide.
  • After working the pry tool the top cover can be easily removed.

  • Some models have their NFC antenna on the back of the battery glued to the top cover. It is not possible to remove the top cover without the battery. In that case, check the touchscreen guide.

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Using a spudger,  remove the small ribbon cable that is connected to the battery. Using a spudger,  remove the small ribbon cable that is connected to the battery. Using a spudger,  remove the small ribbon cable that is connected to the battery.
  • Using a spudger, remove the small ribbon cable that is connected to the battery.

Thank you, i changed the battery mi3 easily. I dont need steep 9,10,11. I removed nfc stickers that stick to battery and attached to top cover carefully, make it top cover and antenna nfc still integrated. Mi3 Battery is removed Due problem "Bootloop mi logo without android, and you can enter fastboot only, no matter it sucessfully flashed via fastboot room it will stay bootloop". So, yes, if the battery not good, it will goes to bootloop automatically.

ary - Reply

I have the same problem. I think my battery also dead! Good information!

Rukmal Ranaweera -

Now grab a hold of the "Battery Removal" tab that is attached to the battery, located at the left side of the back portion of the phone. Lifting up on the tab should remove the battery out of the phone It may take some force to remove the battery as it is also adhered to the phone with two pieces of double sided tape. It may take some force to remove the battery as it is also adhered to the phone with two pieces of double sided tape.
  • Now grab a hold of the "Battery Removal" tab that is attached to the battery, located at the left side of the back portion of the phone. Lifting up on the tab should remove the battery out of the phone

    • It may take some force to remove the battery as it is also adhered to the phone with two pieces of double sided tape.

Use of an old credit card to help lift the battery Is much easier.

Marcel Robert - Reply

I use iSesamo from the edge same as battery removal sticker. its safe from here, where other edge is have flexible cable near.

ary - Reply

The battery is now removed from the phone. The battery is now removed from the phone.
  • The battery is now removed from the phone.

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Conclusion

To reassemble your device, follow these instructions in reverse order.

16 other people completed this guide.

Brian Cantler

Member since: 09/02/2015

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1 Guide authored

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USF Tampa, Team 1-5, Remmell Fall 2015 Member of USF Tampa, Team 1-5, Remmell Fall 2015

USFT-REMMELL-F15S1G5

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4 Comments

Fr where do I gotta find a new battery after the removal of the old one???

Mohit Soni - Reply

Easily available on Ebay. I am about to replace mine 2nd time, work's fine though the discharge seems to be higher after almost a year of replacement. Phone's still good to go for another year or so hopefully. No serious lags :)

Kiran G -

thank you very much; changed my battery for the first time for 3 years.

Dave Adiastha - Reply

Hi I would like to know where can i find spare parts of Xiaomi MI3W. I have a MI3W whose internal USB Bus along with the USB port is damaged. Also touch is damaged, so need to purchase a display along with touch. So can anyone please guide me to a website where they sell spare parts of Xiaomi MI3W.

Sirish Kumar - Reply

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