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EDL mode: what it is, how to enter and how to exit

3 min read

EDL mode: what it is, how to enter and how to exit
EDL mode: what it is, how to enter and how to exit

EDL (Emergency Download) is the emergency boot mode of Qualcomm processors. It is built into the chip and works even when the firmware is damaged and the phone will not turn on. In EDL the computer talks to the phone directly over the Qualcomm HS-USB QDLoader 9008 port. Through it you flash bricks, make backups and run service operations.

How to tell the phone is in EDL

The screen stays black — that is normal and not a fault. There is one sign of entry: a Qualcomm HS-USB QDLoader 9008 port appears in Windows Device Manager. If you see an unknown device or code 10 instead, the driver did not install — see Qualcomm 9008 driver not installing.

Ways to enter EDL

MethodWhen it fitsHow
adbphone boots, USB debugging onadb reboot edl
fastbootfastboot access availablefastboot oem edl or fastboot reboot edl (not on all)
Buttonsphone respondspower off, hold both volume keys and connect the cable
EDL cablephone will not turn ona cable with shorted pins (Deep Flash)
Test pointother ways failshort the test pads on the board while connecting

Button combinations differ by brand, and on recent models entry is often locked, leaving only the test point. The cable and modes are covered in the drivers and connection modes guide.

Authorization in EDL

On many modern Qualcomm phones entering EDL is only half the job: the phone accepts the loader (Firehose/programmer) only after server authorization. That is why just flashing from free builds often fails, while service software passes authorization through its servers. For Xiaomi specifics see the Xiaomi EDL article.

How to exit EDL

  1. Unplug the cable from the phone.
  2. Hold Power for 15 to 20 seconds — the phone reboots.
  3. If that does not help, let the battery drain a little and repeat.
  4. If the phone keeps returning to EDL on its own, the boot area is damaged and it cannot exit on its own: it must be flashed in EDL.

Common errors

  • No 9008 port — wrong mode or the QDLoader driver did not install.
  • Sahara fail — the programmer did not load or is not for this model; see the Sahara error article.
  • Phone drops after a few seconds — bad cable or a front USB port; use a direct USB 2.0 port on the back.

For service work in EDL you need a tool with server authorization: UnlockTool rental or TFM Tool Pro rental. Access is delivered automatically after payment.

FAQ

The screen is black, is the phone dead?

No. In EDL the screen does not turn on, and that is normal. The sign of a successful entry is a Qualcomm HS-USB QDLoader 9008 port in Device Manager.

Is there EDL on MediaTek?

No. EDL is a Qualcomm mode. The MediaTek equivalent is BROM, and Unisoc uses the SPD download mode.

How do I exit if the buttons do not help?

Unplug the cable and hold Power for 15 to 20 seconds. If the phone keeps returning to EDL, the boot area is damaged and it must be flashed in EDL.

Is there EDL on Samsung?

Only on Qualcomm models, and entry is almost always via a test point. Exynos Samsung phones have no EDL and use Download Mode.

Topics: Drivers & modes

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