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Mi Band Ultra (Band 4 battery and TYPE-C mod) 3D Printer File Image 1
Mi Band Ultra (Band 4 battery and TYPE-C mod) 3D Printer File Image 2
Mi Band Ultra (Band 4 battery and TYPE-C mod) 3D Printer File Thumbnail 1
Mi Band Ultra (Band 4 battery and TYPE-C mod) 3D Printer File Thumbnail 2

Mi Band Ultra (Band 4 battery and TYPE-C mod)

Goblinhan Yıkan avatarGoblinhan Yıkan

November 29, 2025

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Description

i guess these bands werent made to last huh. no problem, not only we will fix it; we will make it even uglier than it already is. You'll have to remove the screen assembly with a heat gun and a razor knife. (be careful not to cut the display itself, or its flex cables) then remove the motherboard, alongside the battery. check if the battery reads 0V, if it does, we can just upgrade it with a 13350 vape battery. you'll need to remove the bms board from the original battery. After rewiring the big battery onto the bms, solder the bms output leads back to the motherboard. Then solder two wires onto the leads for usb charging. It can take 5V like a champ, so we will just slap a female type-c port there. Then assemble the unit using the case model i provided, then enjoy your most cursed watch ever.

 

Sanırım bu saatler uzun ömürlü olmak için yapılmamış. Sorun değil; hem tamir edeceğiz hem de olduğundan daha çirkin hale getireceğiz. Ekran panelini sıcak hava tabancasından ve jilet gibi keskin bir bıçaktan (maket bıçağı ya da hassas bir jilet) yardım alarak ayırman gerekecek. (Ekranı veya flex kablolarını kesmemeye dikkat et!) Ardından anakartı ve pili çıkar. Pil 0V mu gösteriyor diye kontrol et; eğer gösteriyorsa, direkt 13350’lik bir tüttürmatik pili tak (takacağın batarya 2.5V dan aşağı ise onu da takma.). Orijinal pilin BMS kartını sökmen gerekecek. Büyük pili BMS’e tekrar lehimledikten sonra, BMS’in çıkış uçlarını anakarta geri lehimle. Sonra USB şarj için o uçlara iki kablo lehimle. 5V’u taş gibi kaldırıyor, o yüzden oraya dişi bir Type-C portu çakacağız. Son olarak, verdiğim kasa modelini kullanarak cihazı topla ve hayatının en korkunç saatinin keyfini çıkar.

License:

Creative Commons — Public Domain

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