Link the Setting to a Reproducible Symptom
For Ledger Live connection problems attributed to Samsung battery optimization, first show that the app works while visible and fails after a particular background transition. The current app branding is Ledger Wallet. A device that never connects in the foreground needs discovery or USB diagnosis before a battery exception becomes the leading remedy.
Record the Galaxy model, Android and One UI releases, the Ledger model, and the transition. Returning from a screen lock, switching apps, and physically losing USB power are different events even when the wallet shows a similar connection message.
Locate the Verified App in Samsung’s Lists
Use Samsung’s sleeping-app guidance to locate Background usage limits and inspect the app’s current category. Depending on software and model, settings can appear through Battery or device-care controls. Search the current phone settings rather than copying another model’s screenshots literally.
Sleeping apps, Deep sleeping apps, and Never sleeping exceptions describe different treatment. Samsung’s developer explanation describes stronger background restriction for deep-sleeping applications. It does not guarantee that a never-sleeping app will retain every accessory session indefinitely.
Compare One Targeted Change
Suppose the verified wallet is listed in Deep sleeping apps and its device action works until you open another application. Save that observation, then assess removing only that identified restriction or using a suitable targeted exception. Keep all other test conditions constant.
Repeat the harmless transition and inspect whether the app restarts, reconnects, or completes the intended device task. If nothing improves, keep the negative result and reconsider the cause. Do not disable power controls across the phone to obtain an ambiguous difference.
An exception can affect battery use, so retain a reason for it and review whether it addresses the actual workflow. Avoid treating every background setting as a required permanent part of wallet installation.
Keep the Ledger’s State in the Comparison
A Bluetooth-capable signer must still be powered, unlocked, and available to the intended phone. Another client’s active session or the device’s own lock can interrupt access independently of Samsung’s app category.
Nano S Plus is different: it relies on USB power and data and has no internal battery or Bluetooth. If its screen goes dark and restarts, inspect the supported cable and host arrangement. Moving an app between sleeping lists cannot repair an intermittent physical connection.
The Nano S Plus product information confirms that battery-free wired design. Record whether Android reports detachment or only the wallet loses a session before choosing between physical and software branches.
Preserve Maintenance and Approved Actions
Do not test background interruption while Ledger OS installation is advancing. Keep the supported update session stable and defer ordinary phone restarts, app-data clearing, and cable experiments. An explicit failed state needs the exact hardware recovery instructions.
If a transfer or provider action was approved before the connection disappeared, inspect its actual status first. A background limit does not reverse a broadcast or prove a second approval would merely repeat the same operation.
Use the genuine app from the official Google Play listing. Battery utilities or modified wallet packages create another authenticity question instead of explaining the original behavior.
Does Recent Apps Prove Background Work Is Allowed?
No. A retained app card and its effective background treatment are different observations. Inspect the relevant category and actual return behavior.
Should an Exception Be Combined With Every Permission?
No. Bluetooth discovery, camera access, and USB authorization have separate purposes. Change only a grant required by the intended supported feature.
What If the Connection Drops Even With the App Visible?
Revisit transport, power, permissions, and hardware state. A foreground failure is not established as battery optimization merely because the phone has that feature.
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