mấy anh hướng dẫn em với hic bị lỗi y hệt chỉ scan được mấy ổ xài áp 1v8 với 2v8...ổ nào xài áp 3v3 là k scan được luôn....... ERROR: EMMC WAS NOT Detected! (CMD1)--Solution Error --"1. DO NOT USE THE PHONE"S BATTERY 2. Connect the Soldered TP Connections to ATF Box 3. Disconnect the USB Cable and Wait until the the ATF Software will tell you to Connect the USB." ERROR: EMMC WAS NOT Detected! (CMD1) Check your Test Point Soldering! CMD1 Reply: 0x00000000 ADAPTER USED --ATF 4in1 Adapter V2 Solution -- 1. Check and confirm soldering is perfect. Reduce wire length as low as 5cm If you are getting same error -- 2. -- 4 in 1 Adapter -- <Bạn vui lòng đăng nhập hoặc đăng ký để xem được nội dung này!> Check 1.8V, 2.8V And 3.3V are OK 3.3V may be near 3V only--IF 3.3v is not OK continue --IF OK Please STOP HERE and excuse me Why 3.3V is not OK?? The regulator used is -- AMS117 3.3V Datasheet -- Attachment 346792 There should be at-least 1.25V difference between Input and output of AMS117 series regulators Its a 5V to 3.3V regulator Input for AMS117 3.3V regulator? <Bạn vui lòng đăng nhập hoặc đăng ký để xem được nội dung này!> Input of AMS117 - 4.2V Output expected 3.3V But since min. V difference between I/P and O/P is 1.25V, SO , obtained O/P 4.2V-1.25= 2.95V So the 3.3V is not getting. What to do? Remove AMS117 3.3V regulator Provide 3.3V externally. Set max current 200mA Vcc - 2.8V , Vccq - 3.3V Note-- If Box goes OFF when connecting adapter, remove R3 (zero ohm R) near sd-card connector Change Vccq to 3.3V in ATF SW . These steps helped me. Hope this will solve the not connecting issue. Try
